220967525

素因数分解:

$5^2\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{619}}^1$

素因数の和:869

約数の個数: 24

約数和(自身を含む): 279074400

約数和(自身を除く): 58106875

約数列:

[1, 5, 25, 109, 131, 545, 619, 655, 2725, 3095, 3275, 14279, 15475, 67471, 71395, 81089, 337355, 356975, 405445, 1686775, 2027225, 8838701, 44193505, 220967525]

約数ペア:

[(1, 220967525), (5, 44193505), (25, 8838701), (109, 2027225), (131, 1686775), (545, 405445), (619, 356975), (655, 337355), (2725, 81089), (3095, 71395), (3275, 67471), (14279, 15475)]