638562120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{829}}^1$

素因数の和:988

約数の個数: 192

約数和(自身を含む): 2248171200

約数和(自身を除く): 1609609080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 131, 140, 147, 168, 196, 210, 245, 262, 280, 294, 392, 393, 420, 490, 524, 588, 655, 735, 786, 829, 840, 917, 980, 1048, 1176, 1310, 1470, 1572, 1658, 1834, 1960, 1965, 2487, 2620, 2751, 2940, 3144, 3316, 3668, 3930, 4145, 4585, 4974, 5240, 5502, 5803, 5880, 6419, 6632, 7336, 7860, 8290, 9170, 9948, 11004, 11606, 12435, 12838, 13755, 15720, 16580, 17409, 18340, 19257, 19896, 22008, 23212, 24870, 25676, 27510, 29015, 32095, 33160, 34818, 36680, 38514, 40621, 46424, 49740, 51352, 55020, 58030, 64190, 69636, 77028, 81242, 87045, 96285, 99480, 108599, 110040, 116060, 121863, 128380, 139272, 154056, 162484, 174090, 192570, 203105, 217198, 232120, 243726, 256760, 324968, 325797, 348180, 385140, 406210, 434396, 487452, 542995, 609315, 651594, 696360, 760193, 770280, 812420, 868792, 974904, 1085990, 1218630, 1303188, 1520386, 1624840, 1628985, 2171980, 2280579, 2437260, 2606376, 3040772, 3257970, 3800965, 4343960, 4561158, 4874520, 5321351, 6081544, 6515940, 7601930, 9122316, 10642702, 11402895, 13031880, 15203860, 15964053, 18244632, 21285404, 22805790, 26606755, 30407720, 31928106, 42570808, 45611580, 53213510, 63856212, 79820265, 91223160, 106427020, 127712424, 159640530, 212854040, 319281060, 638562120]

約数ペア:

[(1, 638562120), (2, 319281060), (3, 212854040), (4, 159640530), (5, 127712424), (6, 106427020), (7, 91223160), (8, 79820265), (10, 63856212), (12, 53213510), (14, 45611580), (15, 42570808), (20, 31928106), (21, 30407720), (24, 26606755), (28, 22805790), (30, 21285404), (35, 18244632), (40, 15964053), (42, 15203860), (49, 13031880), (56, 11402895), (60, 10642702), (70, 9122316), (84, 7601930), (98, 6515940), (105, 6081544), (120, 5321351), (131, 4874520), (140, 4561158), (147, 4343960), (168, 3800965), (196, 3257970), (210, 3040772), (245, 2606376), (262, 2437260), (280, 2280579), (294, 2171980), (392, 1628985), (393, 1624840), (420, 1520386), (490, 1303188), (524, 1218630), (588, 1085990), (655, 974904), (735, 868792), (786, 812420), (829, 770280), (840, 760193), (917, 696360), (980, 651594), (1048, 609315), (1176, 542995), (1310, 487452), (1470, 434396), (1572, 406210), (1658, 385140), (1834, 348180), (1960, 325797), (1965, 324968), (2487, 256760), (2620, 243726), (2751, 232120), (2940, 217198), (3144, 203105), (3316, 192570), (3668, 174090), (3930, 162484), (4145, 154056), (4585, 139272), (4974, 128380), (5240, 121863), (5502, 116060), (5803, 110040), (5880, 108599), (6419, 99480), (6632, 96285), (7336, 87045), (7860, 81242), (8290, 77028), (9170, 69636), (9948, 64190), (11004, 58030), (11606, 55020), (12435, 51352), (12838, 49740), (13755, 46424), (15720, 40621), (16580, 38514), (17409, 36680), (18340, 34818), (19257, 33160), (19896, 32095), (22008, 29015), (23212, 27510), (24870, 25676)]