1953640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^2$

素因数の和:71

約数の個数: 72

約数和(自身を含む): 5056290

約数和(自身を除く): 3102650

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 169, 170, 221, 260, 289, 338, 340, 442, 520, 578, 676, 680, 845, 884, 1105, 1156, 1352, 1445, 1690, 1768, 2210, 2312, 2873, 2890, 3380, 3757, 4420, 5746, 5780, 6760, 7514, 8840, 11492, 11560, 14365, 15028, 18785, 22984, 28730, 30056, 37570, 48841, 57460, 75140, 97682, 114920, 150280, 195364, 244205, 390728, 488410, 976820, 1953640]

約数ペア:

[(1, 1953640), (2, 976820), (4, 488410), (5, 390728), (8, 244205), (10, 195364), (13, 150280), (17, 114920), (20, 97682), (26, 75140), (34, 57460), (40, 48841), (52, 37570), (65, 30056), (68, 28730), (85, 22984), (104, 18785), (130, 15028), (136, 14365), (169, 11560), (170, 11492), (221, 8840), (260, 7514), (289, 6760), (338, 5780), (340, 5746), (442, 4420), (520, 3757), (578, 3380), (676, 2890), (680, 2873), (845, 2312), (884, 2210), (1105, 1768), (1156, 1690), (1352, 1445)]