229721425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{8861}}^1$

素因数の和:8949

約数の個数: 24

約数和(自身を含む): 306589752

約数和(自身を除く): 76868327

約数列:

[1, 5, 17, 25, 61, 85, 305, 425, 1037, 1525, 5185, 8861, 25925, 44305, 150637, 221525, 540521, 753185, 2702605, 3765925, 9188857, 13513025, 45944285, 229721425]

約数ペア:

[(1, 229721425), (5, 45944285), (17, 13513025), (25, 9188857), (61, 3765925), (85, 2702605), (305, 753185), (425, 540521), (1037, 221525), (1525, 150637), (5185, 44305), (8861, 25925)]