3955240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1621}}^1$

素因数の和:1693

約数の個数: 32

約数和(自身を含む): 9050760

約数和(自身を除く): 5095520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 1621, 2440, 3242, 6484, 8105, 12968, 16210, 32420, 64840, 98881, 197762, 395524, 494405, 791048, 988810, 1977620, 3955240]

約数ペア:

[(1, 3955240), (2, 1977620), (4, 988810), (5, 791048), (8, 494405), (10, 395524), (20, 197762), (40, 98881), (61, 64840), (122, 32420), (244, 16210), (305, 12968), (488, 8105), (610, 6484), (1220, 3242), (1621, 2440)]