20267275

素因数分解:

$5^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{647}}^1$

素因数の和:843

約数の個数: 24

約数和(自身を含む): 28926720

約数和(自身を除く): 8659445

約数列:

[1, 5, 7, 25, 35, 175, 179, 647, 895, 1253, 3235, 4475, 4529, 6265, 16175, 22645, 31325, 113225, 115813, 579065, 810691, 2895325, 4053455, 20267275]

約数ペア:

[(1, 20267275), (5, 4053455), (7, 2895325), (25, 810691), (35, 579065), (175, 115813), (179, 113225), (647, 31325), (895, 22645), (1253, 16175), (3235, 6265), (4475, 4529)]