20104370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{827}}^1$

素因数の和:875

約数の個数: 64

約数和(自身を含む): 45069696

約数和(自身を除く): 24965326

約数列:

[1, 2, 5, 10, 11, 13, 17, 22, 26, 34, 55, 65, 85, 110, 130, 143, 170, 187, 221, 286, 374, 442, 715, 827, 935, 1105, 1430, 1654, 1870, 2210, 2431, 4135, 4862, 8270, 9097, 10751, 12155, 14059, 18194, 21502, 24310, 28118, 45485, 53755, 70295, 90970, 107510, 118261, 140590, 154649, 182767, 236522, 309298, 365534, 591305, 773245, 913835, 1182610, 1546490, 1827670, 2010437, 4020874, 10052185, 20104370]

約数ペア:

[(1, 20104370), (2, 10052185), (5, 4020874), (10, 2010437), (11, 1827670), (13, 1546490), (17, 1182610), (22, 913835), (26, 773245), (34, 591305), (55, 365534), (65, 309298), (85, 236522), (110, 182767), (130, 154649), (143, 140590), (170, 118261), (187, 107510), (221, 90970), (286, 70295), (374, 53755), (442, 45485), (715, 28118), (827, 24310), (935, 21502), (1105, 18194), (1430, 14059), (1654, 12155), (1870, 10751), (2210, 9097), (2431, 8270), (4135, 4862)]