20474940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2687}}^1$

素因数の和:2826

約数の個数: 48

約数和(自身を含む): 57802752

約数和(自身を除く): 37327812

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 381, 508, 635, 762, 1270, 1524, 1905, 2540, 2687, 3810, 5374, 7620, 8061, 10748, 13435, 16122, 26870, 32244, 40305, 53740, 80610, 161220, 341249, 682498, 1023747, 1364996, 1706245, 2047494, 3412490, 4094988, 5118735, 6824980, 10237470, 20474940]

約数ペア:

[(1, 20474940), (2, 10237470), (3, 6824980), (4, 5118735), (5, 4094988), (6, 3412490), (10, 2047494), (12, 1706245), (15, 1364996), (20, 1023747), (30, 682498), (60, 341249), (127, 161220), (254, 80610), (381, 53740), (508, 40305), (635, 32244), (762, 26870), (1270, 16122), (1524, 13435), (1905, 10748), (2540, 8061), (2687, 7620), (3810, 5374)]