21074040

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:131

約数の個数: 256

約数和(自身を含む): 80640000

約数和(自身を除く): 59565960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 19, 20, 24, 26, 27, 30, 36, 38, 39, 40, 45, 52, 54, 57, 60, 65, 72, 76, 78, 79, 90, 95, 104, 108, 114, 117, 120, 130, 135, 152, 156, 158, 171, 180, 190, 195, 216, 228, 234, 237, 247, 260, 270, 285, 312, 316, 342, 351, 360, 380, 390, 395, 456, 468, 474, 494, 513, 520, 540, 570, 585, 632, 684, 702, 711, 741, 760, 780, 790, 855, 936, 948, 988, 1026, 1027, 1080, 1140, 1170, 1185, 1235, 1368, 1404, 1422, 1482, 1501, 1560, 1580, 1710, 1755, 1896, 1976, 2052, 2054, 2133, 2223, 2280, 2340, 2370, 2470, 2565, 2808, 2844, 2964, 3002, 3081, 3160, 3420, 3510, 3555, 3705, 4104, 4108, 4266, 4446, 4503, 4680, 4740, 4940, 5130, 5135, 5688, 5928, 6004, 6162, 6669, 6840, 7020, 7110, 7410, 7505, 8216, 8532, 8892, 9006, 9243, 9480, 9880, 10260, 10270, 10665, 11115, 12008, 12324, 13338, 13509, 14040, 14220, 14820, 15010, 15405, 17064, 17784, 18012, 18486, 19513, 20520, 20540, 21330, 22230, 22515, 24648, 26676, 27018, 27729, 28440, 29640, 30020, 30810, 33345, 36024, 36972, 39026, 40527, 41080, 42660, 44460, 45030, 46215, 53352, 54036, 55458, 58539, 60040, 61620, 66690, 67545, 73944, 78052, 81054, 85320, 88920, 90060, 92430, 97565, 108072, 110916, 117078, 123240, 133380, 135090, 138645, 156104, 162108, 175617, 180120, 184860, 195130, 202635, 221832, 234156, 266760, 270180, 277290, 292695, 324216, 351234, 369720, 390260, 405270, 468312, 526851, 540360, 554580, 585390, 702468, 780520, 810540, 878085, 1053702, 1109160, 1170780, 1404936, 1621080, 1756170, 2107404, 2341560, 2634255, 3512340, 4214808, 5268510, 7024680, 10537020, 21074040]

約数ペア:

[(1, 21074040), (2, 10537020), (3, 7024680), (4, 5268510), (5, 4214808), (6, 3512340), (8, 2634255), (9, 2341560), (10, 2107404), (12, 1756170), (13, 1621080), (15, 1404936), (18, 1170780), (19, 1109160), (20, 1053702), (24, 878085), (26, 810540), (27, 780520), (30, 702468), (36, 585390), (38, 554580), (39, 540360), (40, 526851), (45, 468312), (52, 405270), (54, 390260), (57, 369720), (60, 351234), (65, 324216), (72, 292695), (76, 277290), (78, 270180), (79, 266760), (90, 234156), (95, 221832), (104, 202635), (108, 195130), (114, 184860), (117, 180120), (120, 175617), (130, 162108), (135, 156104), (152, 138645), (156, 135090), (158, 133380), (171, 123240), (180, 117078), (190, 110916), (195, 108072), (216, 97565), (228, 92430), (234, 90060), (237, 88920), (247, 85320), (260, 81054), (270, 78052), (285, 73944), (312, 67545), (316, 66690), (342, 61620), (351, 60040), (360, 58539), (380, 55458), (390, 54036), (395, 53352), (456, 46215), (468, 45030), (474, 44460), (494, 42660), (513, 41080), (520, 40527), (540, 39026), (570, 36972), (585, 36024), (632, 33345), (684, 30810), (702, 30020), (711, 29640), (741, 28440), (760, 27729), (780, 27018), (790, 26676), (855, 24648), (936, 22515), (948, 22230), (988, 21330), (1026, 20540), (1027, 20520), (1080, 19513), (1140, 18486), (1170, 18012), (1185, 17784), (1235, 17064), (1368, 15405), (1404, 15010), (1422, 14820), (1482, 14220), (1501, 14040), (1560, 13509), (1580, 13338), (1710, 12324), (1755, 12008), (1896, 11115), (1976, 10665), (2052, 10270), (2054, 10260), (2133, 9880), (2223, 9480), (2280, 9243), (2340, 9006), (2370, 8892), (2470, 8532), (2565, 8216), (2808, 7505), (2844, 7410), (2964, 7110), (3002, 7020), (3081, 6840), (3160, 6669), (3420, 6162), (3510, 6004), (3555, 5928), (3705, 5688), (4104, 5135), (4108, 5130), (4266, 4940), (4446, 4740), (4503, 4680)]