1871540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 4402944

約数和(自身を除く): 2531404

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 181, 188, 220, 235, 362, 470, 517, 724, 905, 940, 1034, 1810, 1991, 2068, 2585, 3620, 3982, 5170, 7964, 8507, 9955, 10340, 17014, 19910, 34028, 39820, 42535, 85070, 93577, 170140, 187154, 374308, 467885, 935770, 1871540]

約数ペア:

[(1, 1871540), (2, 935770), (4, 467885), (5, 374308), (10, 187154), (11, 170140), (20, 93577), (22, 85070), (44, 42535), (47, 39820), (55, 34028), (94, 19910), (110, 17014), (181, 10340), (188, 9955), (220, 8507), (235, 7964), (362, 5170), (470, 3982), (517, 3620), (724, 2585), (905, 2068), (940, 1991), (1034, 1810)]