20402312

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{739}}^1$

素因数の和:798

約数の個数: 64

約数和(自身を含む): 47952000

約数和(自身を除く): 27549688

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 29, 34, 56, 58, 68, 116, 119, 136, 203, 232, 238, 406, 476, 493, 739, 812, 952, 986, 1478, 1624, 1972, 2956, 3451, 3944, 5173, 5912, 6902, 10346, 12563, 13804, 20692, 21431, 25126, 27608, 41384, 42862, 50252, 85724, 87941, 100504, 150017, 171448, 175882, 300034, 351764, 364327, 600068, 703528, 728654, 1200136, 1457308, 2550289, 2914616, 5100578, 10201156, 20402312]

約数ペア:

[(1, 20402312), (2, 10201156), (4, 5100578), (7, 2914616), (8, 2550289), (14, 1457308), (17, 1200136), (28, 728654), (29, 703528), (34, 600068), (56, 364327), (58, 351764), (68, 300034), (116, 175882), (119, 171448), (136, 150017), (203, 100504), (232, 87941), (238, 85724), (406, 50252), (476, 42862), (493, 41384), (739, 27608), (812, 25126), (952, 21431), (986, 20692), (1478, 13804), (1624, 12563), (1972, 10346), (2956, 6902), (3451, 5912), (3944, 5173)]