407205220

素因数分解:

$2^2\times 5^1\times {\mathrm{4357}}^1\times {\mathrm{4673}}^1$

素因数の和:9039

約数の個数: 24

約数和(自身を含む): 855510264

約数和(自身を除く): 448305044

約数列:

[1, 2, 4, 5, 10, 20, 4357, 4673, 8714, 9346, 17428, 18692, 21785, 23365, 43570, 46730, 87140, 93460, 20360261, 40720522, 81441044, 101801305, 203602610, 407205220]

約数ペア:

[(1, 407205220), (2, 203602610), (4, 101801305), (5, 81441044), (10, 40720522), (20, 20360261), (4357, 93460), (4673, 87140), (8714, 46730), (9346, 43570), (17428, 23365), (18692, 21785)]