31981300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{337}}^1$

素因数の和:437

約数の個数: 72

約数和(自身を含む): 75986456

約数和(自身を除く): 44005156

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 73, 100, 130, 146, 260, 292, 325, 337, 365, 650, 674, 730, 949, 1300, 1348, 1460, 1685, 1825, 1898, 3370, 3650, 3796, 4381, 4745, 6740, 7300, 8425, 8762, 9490, 16850, 17524, 18980, 21905, 23725, 24601, 33700, 43810, 47450, 49202, 87620, 94900, 98404, 109525, 123005, 219050, 246010, 319813, 438100, 492020, 615025, 639626, 1230050, 1279252, 1599065, 2460100, 3198130, 6396260, 7995325, 15990650, 31981300]

約数ペア:

[(1, 31981300), (2, 15990650), (4, 7995325), (5, 6396260), (10, 3198130), (13, 2460100), (20, 1599065), (25, 1279252), (26, 1230050), (50, 639626), (52, 615025), (65, 492020), (73, 438100), (100, 319813), (130, 246010), (146, 219050), (260, 123005), (292, 109525), (325, 98404), (337, 94900), (365, 87620), (650, 49202), (674, 47450), (730, 43810), (949, 33700), (1300, 24601), (1348, 23725), (1460, 21905), (1685, 18980), (1825, 17524), (1898, 16850), (3370, 9490), (3650, 8762), (3796, 8425), (4381, 7300), (4745, 6740)]