1397366960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1587917}}^1$

素因数の和:1587941

約数の個数: 40

約数和(自身を含む): 3544232976

約数和(自身を除く): 2146866016

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 1587917, 3175834, 6351668, 7939585, 12703336, 15879170, 17467087, 25406672, 31758340, 34934174, 63516680, 69868348, 87335435, 127033360, 139736696, 174670870, 279473392, 349341740, 698683480, 1397366960]

約数ペア:

[(1, 1397366960), (2, 698683480), (4, 349341740), (5, 279473392), (8, 174670870), (10, 139736696), (11, 127033360), (16, 87335435), (20, 69868348), (22, 63516680), (40, 34934174), (44, 31758340), (55, 25406672), (80, 17467087), (88, 15879170), (110, 12703336), (176, 7939585), (220, 6351668), (440, 3175834), (880, 1587917)]