20253640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{241}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 50181120

約数和(自身を除く): 29927480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 191, 220, 241, 382, 440, 482, 764, 955, 964, 1205, 1528, 1910, 1928, 2101, 2410, 2651, 3820, 4202, 4820, 5302, 7640, 8404, 9640, 10505, 10604, 13255, 16808, 21010, 21208, 26510, 42020, 46031, 53020, 84040, 92062, 106040, 184124, 230155, 368248, 460310, 506341, 920620, 1012682, 1841240, 2025364, 2531705, 4050728, 5063410, 10126820, 20253640]

約数ペア:

[(1, 20253640), (2, 10126820), (4, 5063410), (5, 4050728), (8, 2531705), (10, 2025364), (11, 1841240), (20, 1012682), (22, 920620), (40, 506341), (44, 460310), (55, 368248), (88, 230155), (110, 184124), (191, 106040), (220, 92062), (241, 84040), (382, 53020), (440, 46031), (482, 42020), (764, 26510), (955, 21208), (964, 21010), (1205, 16808), (1528, 13255), (1910, 10604), (1928, 10505), (2101, 9640), (2410, 8404), (2651, 7640), (3820, 5302), (4202, 4820)]