55390180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{2179}}^1$

素因数の和:2260

約数の個数: 48

約数和(自身を含む): 123056640

約数和(自身を除く): 67666460

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 1271, 2179, 2542, 4358, 5084, 6355, 8716, 10895, 12710, 21790, 25420, 43580, 67549, 89339, 135098, 178678, 270196, 337745, 357356, 446695, 675490, 893390, 1350980, 1786780, 2769509, 5539018, 11078036, 13847545, 27695090, 55390180]

約数ペア:

[(1, 55390180), (2, 27695090), (4, 13847545), (5, 11078036), (10, 5539018), (20, 2769509), (31, 1786780), (41, 1350980), (62, 893390), (82, 675490), (124, 446695), (155, 357356), (164, 337745), (205, 270196), (310, 178678), (410, 135098), (620, 89339), (820, 67549), (1271, 43580), (2179, 25420), (2542, 21790), (4358, 12710), (5084, 10895), (6355, 8716)]