18463720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1447}}^1$

素因数の和:1498

約数の個数: 64

約数和(自身を含む): 46915200

約数和(自身を除く): 28451480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 1160, 1276, 1447, 1595, 2552, 2894, 3190, 5788, 6380, 7235, 11576, 12760, 14470, 15917, 28940, 31834, 41963, 57880, 63668, 79585, 83926, 127336, 159170, 167852, 209815, 318340, 335704, 419630, 461593, 636680, 839260, 923186, 1678520, 1846372, 2307965, 3692744, 4615930, 9231860, 18463720]

約数ペア:

[(1, 18463720), (2, 9231860), (4, 4615930), (5, 3692744), (8, 2307965), (10, 1846372), (11, 1678520), (20, 923186), (22, 839260), (29, 636680), (40, 461593), (44, 419630), (55, 335704), (58, 318340), (88, 209815), (110, 167852), (116, 159170), (145, 127336), (220, 83926), (232, 79585), (290, 63668), (319, 57880), (440, 41963), (580, 31834), (638, 28940), (1160, 15917), (1276, 14470), (1447, 12760), (1595, 11576), (2552, 7235), (2894, 6380), (3190, 5788)]