20853030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2179}}^1$

素因数の和:2229

約数の個数: 64

約数和(自身を含む): 56505600

約数和(自身を除く): 35652570

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 29, 30, 33, 55, 58, 66, 87, 110, 145, 165, 174, 290, 319, 330, 435, 638, 870, 957, 1595, 1914, 2179, 3190, 4358, 4785, 6537, 9570, 10895, 13074, 21790, 23969, 32685, 47938, 63191, 65370, 71907, 119845, 126382, 143814, 189573, 239690, 315955, 359535, 379146, 631910, 695101, 719070, 947865, 1390202, 1895730, 2085303, 3475505, 4170606, 6951010, 10426515, 20853030]

約数ペア:

[(1, 20853030), (2, 10426515), (3, 6951010), (5, 4170606), (6, 3475505), (10, 2085303), (11, 1895730), (15, 1390202), (22, 947865), (29, 719070), (30, 695101), (33, 631910), (55, 379146), (58, 359535), (66, 315955), (87, 239690), (110, 189573), (145, 143814), (165, 126382), (174, 119845), (290, 71907), (319, 65370), (330, 63191), (435, 47938), (638, 32685), (870, 23969), (957, 21790), (1595, 13074), (1914, 10895), (2179, 9570), (3190, 6537), (4358, 4785)]