31105100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:435

約数の個数: 72

約数和(自身を含む): 73932768

約数和(自身を除く): 42827668

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 71, 100, 130, 142, 260, 284, 325, 337, 355, 650, 674, 710, 923, 1300, 1348, 1420, 1685, 1775, 1846, 3370, 3550, 3692, 4381, 4615, 6740, 7100, 8425, 8762, 9230, 16850, 17524, 18460, 21905, 23075, 23927, 33700, 43810, 46150, 47854, 87620, 92300, 95708, 109525, 119635, 219050, 239270, 311051, 438100, 478540, 598175, 622102, 1196350, 1244204, 1555255, 2392700, 3110510, 6221020, 7776275, 15552550, 31105100]

約数ペア:

[(1, 31105100), (2, 15552550), (4, 7776275), (5, 6221020), (10, 3110510), (13, 2392700), (20, 1555255), (25, 1244204), (26, 1196350), (50, 622102), (52, 598175), (65, 478540), (71, 438100), (100, 311051), (130, 239270), (142, 219050), (260, 119635), (284, 109525), (325, 95708), (337, 92300), (355, 87620), (650, 47854), (674, 46150), (710, 43810), (923, 33700), (1300, 23927), (1348, 23075), (1420, 21905), (1685, 18460), (1775, 17524), (1846, 16850), (3370, 9230), (3550, 8762), (3692, 8425), (4381, 7100), (4615, 6740)]