81330250

素因数分解:

$2^1\times 5^3\times {\mathrm{101}}^1\times {\mathrm{3221}}^1$

素因数の和:3339

約数の個数: 32

約数和(自身を含む): 153805392

約数和(自身を除く): 72475142

約数列:

[1, 2, 5, 10, 25, 50, 101, 125, 202, 250, 505, 1010, 2525, 3221, 5050, 6442, 12625, 16105, 25250, 32210, 80525, 161050, 325321, 402625, 650642, 805250, 1626605, 3253210, 8133025, 16266050, 40665125, 81330250]

約数ペア:

[(1, 81330250), (2, 40665125), (5, 16266050), (10, 8133025), (25, 3253210), (50, 1626605), (101, 805250), (125, 650642), (202, 402625), (250, 325321), (505, 161050), (1010, 80525), (2525, 32210), (3221, 25250), (5050, 16105), (6442, 12625)]