20312820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10259}}^1$

素因数の和:10285

約数の個数: 72

約数和(自身を含む): 67223520

約数和(自身を除く): 46910700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10259, 20518, 30777, 41036, 51295, 61554, 92331, 102590, 112849, 123108, 153885, 184662, 205180, 225698, 307770, 338547, 369324, 451396, 461655, 564245, 615540, 677094, 923310, 1015641, 1128490, 1354188, 1692735, 1846620, 2031282, 2256980, 3385470, 4062564, 5078205, 6770940, 10156410, 20312820]

約数ペア:

[(1, 20312820), (2, 10156410), (3, 6770940), (4, 5078205), (5, 4062564), (6, 3385470), (9, 2256980), (10, 2031282), (11, 1846620), (12, 1692735), (15, 1354188), (18, 1128490), (20, 1015641), (22, 923310), (30, 677094), (33, 615540), (36, 564245), (44, 461655), (45, 451396), (55, 369324), (60, 338547), (66, 307770), (90, 225698), (99, 205180), (110, 184662), (132, 153885), (165, 123108), (180, 112849), (198, 102590), (220, 92331), (330, 61554), (396, 51295), (495, 41036), (660, 30777), (990, 20518), (1980, 10259)]