81505680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1483}}^1$

素因数の和:1728

約数の個数: 80

約数和(自身を含む): 253942080

約数和(自身を除く): 172436400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 229, 240, 458, 687, 916, 1145, 1374, 1483, 1832, 2290, 2748, 2966, 3435, 3664, 4449, 4580, 5496, 5932, 6870, 7415, 8898, 9160, 10992, 11864, 13740, 14830, 17796, 18320, 22245, 23728, 27480, 29660, 35592, 44490, 54960, 59320, 71184, 88980, 118640, 177960, 339607, 355920, 679214, 1018821, 1358428, 1698035, 2037642, 2716856, 3396070, 4075284, 5094105, 5433712, 6792140, 8150568, 10188210, 13584280, 16301136, 20376420, 27168560, 40752840, 81505680]

約数ペア:

[(1, 81505680), (2, 40752840), (3, 27168560), (4, 20376420), (5, 16301136), (6, 13584280), (8, 10188210), (10, 8150568), (12, 6792140), (15, 5433712), (16, 5094105), (20, 4075284), (24, 3396070), (30, 2716856), (40, 2037642), (48, 1698035), (60, 1358428), (80, 1018821), (120, 679214), (229, 355920), (240, 339607), (458, 177960), (687, 118640), (916, 88980), (1145, 71184), (1374, 59320), (1483, 54960), (1832, 44490), (2290, 35592), (2748, 29660), (2966, 27480), (3435, 23728), (3664, 22245), (4449, 18320), (4580, 17796), (5496, 14830), (5932, 13740), (6870, 11864), (7415, 10992), (8898, 9160)]