417640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 962280

約数和(自身を除く): 544640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 197, 212, 265, 394, 424, 530, 788, 985, 1060, 1576, 1970, 2120, 3940, 7880, 10441, 20882, 41764, 52205, 83528, 104410, 208820, 417640]

約数ペア:

[(1, 417640), (2, 208820), (4, 104410), (5, 83528), (8, 52205), (10, 41764), (20, 20882), (40, 10441), (53, 7880), (106, 3940), (197, 2120), (212, 1970), (265, 1576), (394, 1060), (424, 985), (530, 788)]