420390004

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{21683}}^1$

素因数の和:21855

約数の個数: 24

約数和(自身を含む): 761368608

約数和(自身を除く): 340978604

約数列:

[1, 2, 4, 37, 74, 131, 148, 262, 524, 4847, 9694, 19388, 21683, 43366, 86732, 802271, 1604542, 2840473, 3209084, 5680946, 11361892, 105097501, 210195002, 420390004]

約数ペア:

[(1, 420390004), (2, 210195002), (4, 105097501), (37, 11361892), (74, 5680946), (131, 3209084), (148, 2840473), (262, 1604542), (524, 802271), (4847, 86732), (9694, 43366), (19388, 21683)]