4006420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{18211}}^1$

素因数の和:18231

約数の個数: 24

約数和(自身を含む): 9178848

約数和(自身を除く): 5172428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 18211, 36422, 72844, 91055, 182110, 200321, 364220, 400642, 801284, 1001605, 2003210, 4006420]

約数ペア:

[(1, 4006420), (2, 2003210), (4, 1001605), (5, 801284), (10, 400642), (11, 364220), (20, 200321), (22, 182110), (44, 91055), (55, 72844), (110, 36422), (220, 18211)]