38990900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 92415960

約数和(自身を除く): 53425060

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 89, 100, 130, 178, 260, 325, 337, 356, 445, 650, 674, 890, 1157, 1300, 1348, 1685, 1780, 2225, 2314, 3370, 4381, 4450, 4628, 5785, 6740, 8425, 8762, 8900, 11570, 16850, 17524, 21905, 23140, 28925, 29993, 33700, 43810, 57850, 59986, 87620, 109525, 115700, 119972, 149965, 219050, 299930, 389909, 438100, 599860, 749825, 779818, 1499650, 1559636, 1949545, 2999300, 3899090, 7798180, 9747725, 19495450, 38990900]

約数ペア:

[(1, 38990900), (2, 19495450), (4, 9747725), (5, 7798180), (10, 3899090), (13, 2999300), (20, 1949545), (25, 1559636), (26, 1499650), (50, 779818), (52, 749825), (65, 599860), (89, 438100), (100, 389909), (130, 299930), (178, 219050), (260, 149965), (325, 119972), (337, 115700), (356, 109525), (445, 87620), (650, 59986), (674, 57850), (890, 43810), (1157, 33700), (1300, 29993), (1348, 28925), (1685, 23140), (1780, 21905), (2225, 17524), (2314, 16850), (3370, 11570), (4381, 8900), (4450, 8762), (4628, 8425), (5785, 6740)]