647909640

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{257107}}^1$

素因数の和:257131

約数の個数: 96

約数和(自身を含む): 2406530880

約数和(自身を除く): 1758621240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 257107, 514214, 771321, 1028428, 1285535, 1542642, 1799749, 2056856, 2313963, 2571070, 3085284, 3599498, 3856605, 4627926, 5142140, 5399247, 6170568, 7198996, 7713210, 8998745, 9255852, 10284280, 10798494, 11569815, 14397992, 15426420, 16197741, 17997490, 18511704, 21596988, 23139630, 26996235, 30852840, 32395482, 35994980, 43193976, 46279260, 53992470, 64790964, 71989960, 80988705, 92558520, 107984940, 129581928, 161977410, 215969880, 323954820, 647909640]

約数ペア:

[(1, 647909640), (2, 323954820), (3, 215969880), (4, 161977410), (5, 129581928), (6, 107984940), (7, 92558520), (8, 80988705), (9, 71989960), (10, 64790964), (12, 53992470), (14, 46279260), (15, 43193976), (18, 35994980), (20, 32395482), (21, 30852840), (24, 26996235), (28, 23139630), (30, 21596988), (35, 18511704), (36, 17997490), (40, 16197741), (42, 15426420), (45, 14397992), (56, 11569815), (60, 10798494), (63, 10284280), (70, 9255852), (72, 8998745), (84, 7713210), (90, 7198996), (105, 6170568), (120, 5399247), (126, 5142140), (140, 4627926), (168, 3856605), (180, 3599498), (210, 3085284), (252, 2571070), (280, 2313963), (315, 2056856), (360, 1799749), (420, 1542642), (504, 1285535), (630, 1028428), (840, 771321), (1260, 514214), (2520, 257107)]