20204600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1$

素因数の和:457

約数の個数: 96

約数和(自身を含む): 53382000

約数和(自身を除く): 33177400

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 25, 26, 38, 40, 50, 52, 65, 76, 95, 100, 104, 130, 152, 190, 200, 247, 260, 325, 380, 409, 475, 494, 520, 650, 760, 818, 950, 988, 1235, 1300, 1636, 1900, 1976, 2045, 2470, 2600, 3272, 3800, 4090, 4940, 5317, 6175, 7771, 8180, 9880, 10225, 10634, 12350, 15542, 16360, 20450, 21268, 24700, 26585, 31084, 38855, 40900, 42536, 49400, 53170, 62168, 77710, 81800, 101023, 106340, 132925, 155420, 194275, 202046, 212680, 265850, 310840, 388550, 404092, 505115, 531700, 777100, 808184, 1010230, 1063400, 1554200, 2020460, 2525575, 4040920, 5051150, 10102300, 20204600]

約数ペア:

[(1, 20204600), (2, 10102300), (4, 5051150), (5, 4040920), (8, 2525575), (10, 2020460), (13, 1554200), (19, 1063400), (20, 1010230), (25, 808184), (26, 777100), (38, 531700), (40, 505115), (50, 404092), (52, 388550), (65, 310840), (76, 265850), (95, 212680), (100, 202046), (104, 194275), (130, 155420), (152, 132925), (190, 106340), (200, 101023), (247, 81800), (260, 77710), (325, 62168), (380, 53170), (409, 49400), (475, 42536), (494, 40900), (520, 38855), (650, 31084), (760, 26585), (818, 24700), (950, 21268), (988, 20450), (1235, 16360), (1300, 15542), (1636, 12350), (1900, 10634), (1976, 10225), (2045, 9880), (2470, 8180), (2600, 7771), (3272, 6175), (3800, 5317), (4090, 4940)]