31580900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1429}}^1$

素因数の和:1473

約数の個数: 72

約数和(自身を含む): 78198120

約数和(自身を除く): 46617220

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 130, 170, 221, 260, 325, 340, 425, 442, 650, 850, 884, 1105, 1300, 1429, 1700, 2210, 2858, 4420, 5525, 5716, 7145, 11050, 14290, 18577, 22100, 24293, 28580, 35725, 37154, 48586, 71450, 74308, 92885, 97172, 121465, 142900, 185770, 242930, 315809, 371540, 464425, 485860, 607325, 631618, 928850, 1214650, 1263236, 1579045, 1857700, 2429300, 3158090, 6316180, 7895225, 15790450, 31580900]

約数ペア:

[(1, 31580900), (2, 15790450), (4, 7895225), (5, 6316180), (10, 3158090), (13, 2429300), (17, 1857700), (20, 1579045), (25, 1263236), (26, 1214650), (34, 928850), (50, 631618), (52, 607325), (65, 485860), (68, 464425), (85, 371540), (100, 315809), (130, 242930), (170, 185770), (221, 142900), (260, 121465), (325, 97172), (340, 92885), (425, 74308), (442, 71450), (650, 48586), (850, 37154), (884, 35725), (1105, 28580), (1300, 24293), (1429, 22100), (1700, 18577), (2210, 14290), (2858, 11050), (4420, 7145), (5525, 5716)]