20259550

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:337

約数の個数: 48

約数和(自身を含む): 39997440

約数和(自身を除く): 19737890

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 79, 115, 158, 223, 230, 395, 446, 575, 790, 1115, 1150, 1817, 1975, 2230, 3634, 3950, 5129, 5575, 9085, 10258, 11150, 17617, 18170, 25645, 35234, 45425, 51290, 88085, 90850, 128225, 176170, 256450, 405191, 440425, 810382, 880850, 2025955, 4051910, 10129775, 20259550]

約数ペア:

[(1, 20259550), (2, 10129775), (5, 4051910), (10, 2025955), (23, 880850), (25, 810382), (46, 440425), (50, 405191), (79, 256450), (115, 176170), (158, 128225), (223, 90850), (230, 88085), (395, 51290), (446, 45425), (575, 35234), (790, 25645), (1115, 18170), (1150, 17617), (1817, 11150), (1975, 10258), (2230, 9085), (3634, 5575), (3950, 5129)]