18750550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{317}}^1$

素因数の和:362

約数の個数: 72

約数和(自身を含む): 43296336

約数和(自身を除く): 24545786

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 169, 175, 182, 317, 325, 338, 350, 455, 634, 650, 845, 910, 1183, 1585, 1690, 2219, 2275, 2366, 3170, 4121, 4225, 4438, 4550, 5915, 7925, 8242, 8450, 11095, 11830, 15850, 20605, 22190, 28847, 29575, 41210, 53573, 55475, 57694, 59150, 103025, 107146, 110950, 144235, 206050, 267865, 288470, 375011, 535730, 721175, 750022, 1339325, 1442350, 1875055, 2678650, 3750110, 9375275, 18750550]

約数ペア:

[(1, 18750550), (2, 9375275), (5, 3750110), (7, 2678650), (10, 1875055), (13, 1442350), (14, 1339325), (25, 750022), (26, 721175), (35, 535730), (50, 375011), (65, 288470), (70, 267865), (91, 206050), (130, 144235), (169, 110950), (175, 107146), (182, 103025), (317, 59150), (325, 57694), (338, 55475), (350, 53573), (455, 41210), (634, 29575), (650, 28847), (845, 22190), (910, 20605), (1183, 15850), (1585, 11830), (1690, 11095), (2219, 8450), (2275, 8242), (2366, 7925), (3170, 5915), (4121, 4550), (4225, 4438)]