161009840

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3863}}^1$

素因数の和:4397

約数の個数: 40

約数和(自身を含む): 375163488

約数和(自身を除く): 214153648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 1042, 2084, 2605, 3863, 4168, 5210, 7726, 8336, 10420, 15452, 19315, 20840, 30904, 38630, 41680, 61808, 77260, 154520, 309040, 2012623, 4025246, 8050492, 10063115, 16100984, 20126230, 32201968, 40252460, 80504920, 161009840]

約数ペア:

[(1, 161009840), (2, 80504920), (4, 40252460), (5, 32201968), (8, 20126230), (10, 16100984), (16, 10063115), (20, 8050492), (40, 4025246), (80, 2012623), (521, 309040), (1042, 154520), (2084, 77260), (2605, 61808), (3863, 41680), (4168, 38630), (5210, 30904), (7726, 20840), (8336, 19315), (10420, 15452)]