51245560

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{2459}}^1$

素因数の和:2991

約数の個数: 32

約数和(自身を含む): 115570800

約数和(自身を除く): 64325240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2459, 2605, 4168, 4918, 5210, 9836, 10420, 12295, 19672, 20840, 24590, 49180, 98360, 1281139, 2562278, 5124556, 6405695, 10249112, 12811390, 25622780, 51245560]

約数ペア:

[(1, 51245560), (2, 25622780), (4, 12811390), (5, 10249112), (8, 6405695), (10, 5124556), (20, 2562278), (40, 1281139), (521, 98360), (1042, 49180), (2084, 24590), (2459, 20840), (2605, 19672), (4168, 12295), (4918, 10420), (5210, 9836)]