51095960

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1289}}^1$

素因数の和:2291

約数の個数: 32

約数和(自身を含む): 115171200

約数和(自身を除く): 64075240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1289, 1982, 2578, 3964, 4955, 5156, 6445, 7928, 9910, 10312, 12890, 19820, 25780, 39640, 51560, 1277399, 2554798, 5109596, 6386995, 10219192, 12773990, 25547980, 51095960]

約数ペア:

[(1, 51095960), (2, 25547980), (4, 12773990), (5, 10219192), (8, 6386995), (10, 5109596), (20, 2554798), (40, 1277399), (991, 51560), (1289, 39640), (1982, 25780), (2578, 19820), (3964, 12890), (4955, 10312), (5156, 9910), (6445, 7928)]