639044280

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2131}}^1$

素因数の和:2179

約数の個数: 288

約数和(自身を含む): 2559295440

約数和(自身を除く): 1920251160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 17, 18, 20, 21, 24, 28, 30, 34, 35, 36, 40, 42, 45, 49, 51, 56, 60, 63, 68, 70, 72, 84, 85, 90, 98, 102, 105, 119, 120, 126, 136, 140, 147, 153, 168, 170, 180, 196, 204, 210, 238, 245, 252, 255, 280, 294, 306, 315, 340, 357, 360, 392, 408, 420, 441, 476, 490, 504, 510, 588, 595, 612, 630, 680, 714, 735, 765, 833, 840, 882, 952, 980, 1020, 1071, 1176, 1190, 1224, 1260, 1428, 1470, 1530, 1666, 1764, 1785, 1960, 2040, 2131, 2142, 2205, 2380, 2499, 2520, 2856, 2940, 3060, 3332, 3528, 3570, 4165, 4262, 4284, 4410, 4760, 4998, 5355, 5880, 6120, 6393, 6664, 7140, 7497, 8330, 8524, 8568, 8820, 9996, 10655, 10710, 12495, 12786, 14280, 14917, 14994, 16660, 17048, 17640, 19179, 19992, 21310, 21420, 24990, 25572, 29834, 29988, 31965, 33320, 36227, 37485, 38358, 42620, 42840, 44751, 49980, 51144, 59668, 59976, 63930, 72454, 74585, 74970, 76716, 85240, 89502, 95895, 99960, 104419, 108681, 119336, 127860, 134253, 144908, 149170, 149940, 153432, 179004, 181135, 191790, 208838, 217362, 223755, 253589, 255720, 268506, 289816, 298340, 299880, 313257, 326043, 358008, 362270, 383580, 417676, 434724, 447510, 507178, 522095, 537012, 543405, 596680, 626514, 652086, 671265, 724540, 760767, 767160, 835352, 869448, 895020, 939771, 1014356, 1044190, 1074024, 1086810, 1253028, 1267945, 1304172, 1342530, 1449080, 1521534, 1566285, 1630215, 1775123, 1790040, 1879542, 2028712, 2088380, 2173620, 2282301, 2506056, 2535890, 2608344, 2685060, 3043068, 3132570, 3260430, 3550246, 3759084, 3803835, 4176760, 4347240, 4564602, 4698855, 5071780, 5325369, 5370120, 6086136, 6265140, 6520860, 7100492, 7518168, 7607670, 8875615, 9129204, 9397710, 10143560, 10650738, 11411505, 12530280, 13041720, 14200984, 15215340, 15976107, 17751230, 18258408, 18795420, 21301476, 22823010, 26626845, 30430680, 31952214, 35502460, 37590840, 42602952, 45646020, 53253690, 63904428, 71004920, 79880535, 91292040, 106507380, 127808856, 159761070, 213014760, 319522140, 639044280]

約数ペア:

[(1, 639044280), (2, 319522140), (3, 213014760), (4, 159761070), (5, 127808856), (6, 106507380), (7, 91292040), (8, 79880535), (9, 71004920), (10, 63904428), (12, 53253690), (14, 45646020), (15, 42602952), (17, 37590840), (18, 35502460), (20, 31952214), (21, 30430680), (24, 26626845), (28, 22823010), (30, 21301476), (34, 18795420), (35, 18258408), (36, 17751230), (40, 15976107), (42, 15215340), (45, 14200984), (49, 13041720), (51, 12530280), (56, 11411505), (60, 10650738), (63, 10143560), (68, 9397710), (70, 9129204), (72, 8875615), (84, 7607670), (85, 7518168), (90, 7100492), (98, 6520860), (102, 6265140), (105, 6086136), (119, 5370120), (120, 5325369), (126, 5071780), (136, 4698855), (140, 4564602), (147, 4347240), (153, 4176760), (168, 3803835), (170, 3759084), (180, 3550246), (196, 3260430), (204, 3132570), (210, 3043068), (238, 2685060), (245, 2608344), (252, 2535890), (255, 2506056), (280, 2282301), (294, 2173620), (306, 2088380), (315, 2028712), (340, 1879542), (357, 1790040), (360, 1775123), (392, 1630215), (408, 1566285), (420, 1521534), (441, 1449080), (476, 1342530), (490, 1304172), (504, 1267945), (510, 1253028), (588, 1086810), (595, 1074024), (612, 1044190), (630, 1014356), (680, 939771), (714, 895020), (735, 869448), (765, 835352), (833, 767160), (840, 760767), (882, 724540), (952, 671265), (980, 652086), (1020, 626514), (1071, 596680), (1176, 543405), (1190, 537012), (1224, 522095), (1260, 507178), (1428, 447510), (1470, 434724), (1530, 417676), (1666, 383580), (1764, 362270), (1785, 358008), (1960, 326043), (2040, 313257), (2131, 299880), (2142, 298340), (2205, 289816), (2380, 268506), (2499, 255720), (2520, 253589), (2856, 223755), (2940, 217362), (3060, 208838), (3332, 191790), (3528, 181135), (3570, 179004), (4165, 153432), (4262, 149940), (4284, 149170), (4410, 144908), (4760, 134253), (4998, 127860), (5355, 119336), (5880, 108681), (6120, 104419), (6393, 99960), (6664, 95895), (7140, 89502), (7497, 85240), (8330, 76716), (8524, 74970), (8568, 74585), (8820, 72454), (9996, 63930), (10655, 59976), (10710, 59668), (12495, 51144), (12786, 49980), (14280, 44751), (14917, 42840), (14994, 42620), (16660, 38358), (17048, 37485), (17640, 36227), (19179, 33320), (19992, 31965), (21310, 29988), (21420, 29834), (24990, 25572)]