661440147280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1759}}^1\times {\mathrm{427309}}^1$

素因数の和:429092

約数の個数: 80

約数和(自身を含む): 1678610419200

約数和(自身を除く): 1017170271920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 1759, 3518, 7036, 8795, 14072, 17590, 19349, 28144, 35180, 38698, 70360, 77396, 96745, 140720, 154792, 193490, 309584, 386980, 427309, 773960, 854618, 1547920, 1709236, 2136545, 3418472, 4273090, 4700399, 6836944, 8546180, 9400798, 17092360, 18801596, 23501995, 34184720, 37603192, 47003990, 75206384, 94007980, 188015960, 376031920, 751636531, 1503273062, 3006546124, 3758182655, 6013092248, 7516365310, 8268001841, 12026184496, 15032730620, 16536003682, 30065461240, 33072007364, 41340009205, 60130922480, 66144014728, 82680018410, 132288029456, 165360036820, 330720073640, 661440147280]

約数ペア:

[(1, 661440147280), (2, 330720073640), (4, 165360036820), (5, 132288029456), (8, 82680018410), (10, 66144014728), (11, 60130922480), (16, 41340009205), (20, 33072007364), (22, 30065461240), (40, 16536003682), (44, 15032730620), (55, 12026184496), (80, 8268001841), (88, 7516365310), (110, 6013092248), (176, 3758182655), (220, 3006546124), (440, 1503273062), (880, 751636531), (1759, 376031920), (3518, 188015960), (7036, 94007980), (8795, 75206384), (14072, 47003990), (17590, 37603192), (19349, 34184720), (28144, 23501995), (35180, 18801596), (38698, 17092360), (70360, 9400798), (77396, 8546180), (96745, 6836944), (140720, 4700399), (154792, 4273090), (193490, 3418472), (309584, 2136545), (386980, 1709236), (427309, 1547920), (773960, 854618)]