20345290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41521}}^1$

素因数の和:41542

約数の個数: 24

約数和(自身を含む): 42601572

約数和(自身を除く): 22256282

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 41521, 83042, 207605, 290647, 415210, 581294, 1453235, 2034529, 2906470, 4069058, 10172645, 20345290]

約数ペア:

[(1, 20345290), (2, 10172645), (5, 4069058), (7, 2906470), (10, 2034529), (14, 1453235), (35, 581294), (49, 415210), (70, 290647), (98, 207605), (245, 83042), (490, 41521)]