71309925

素因数分解:

$3^2\times 5^2\times {\mathrm{557}}^1\times {\mathrm{569}}^1$

素因数の和:1142

約数の個数: 36

約数和(自身を含む): 128178180

約数和(自身を除く): 56868255

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 557, 569, 1671, 1707, 2785, 2845, 5013, 5121, 8355, 8535, 13925, 14225, 25065, 25605, 41775, 42675, 125325, 128025, 316933, 950799, 1584665, 2852397, 4753995, 7923325, 14261985, 23769975, 71309925]

約数ペア:

[(1, 71309925), (3, 23769975), (5, 14261985), (9, 7923325), (15, 4753995), (25, 2852397), (45, 1584665), (75, 950799), (225, 316933), (557, 128025), (569, 125325), (1671, 42675), (1707, 41775), (2785, 25605), (2845, 25065), (5013, 14225), (5121, 13925), (8355, 8535)]