645968

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{859}}^1$

素因数の和:914

約数の個数: 20

約数和(自身を含む): 1279680

約数和(自身を除く): 633712

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 859, 1718, 3436, 6872, 13744, 40373, 80746, 161492, 322984, 645968]

約数ペア:

[(1, 645968), (2, 322984), (4, 161492), (8, 80746), (16, 40373), (47, 13744), (94, 6872), (188, 3436), (376, 1718), (752, 859)]