40754480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{263}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 103118400

約数和(自身を除く): 62363920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 149, 208, 260, 263, 298, 520, 526, 596, 745, 1040, 1052, 1192, 1315, 1490, 1937, 2104, 2384, 2630, 2980, 3419, 3874, 4208, 5260, 5960, 6838, 7748, 9685, 10520, 11920, 13676, 15496, 17095, 19370, 21040, 27352, 30992, 34190, 38740, 39187, 54704, 68380, 77480, 78374, 136760, 154960, 156748, 195935, 273520, 313496, 391870, 509431, 626992, 783740, 1018862, 1567480, 2037724, 2547155, 3134960, 4075448, 5094310, 8150896, 10188620, 20377240, 40754480]

約数ペア:

[(1, 40754480), (2, 20377240), (4, 10188620), (5, 8150896), (8, 5094310), (10, 4075448), (13, 3134960), (16, 2547155), (20, 2037724), (26, 1567480), (40, 1018862), (52, 783740), (65, 626992), (80, 509431), (104, 391870), (130, 313496), (149, 273520), (208, 195935), (260, 156748), (263, 154960), (298, 136760), (520, 78374), (526, 77480), (596, 68380), (745, 54704), (1040, 39187), (1052, 38740), (1192, 34190), (1315, 30992), (1490, 27352), (1937, 21040), (2104, 19370), (2384, 17095), (2630, 15496), (2980, 13676), (3419, 11920), (3874, 10520), (4208, 9685), (5260, 7748), (5960, 6838)]