220139240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{1087}}^1$

素因数の和:1242

約数の個数: 64

約数和(自身を含む): 509967360

約数和(自身を除く): 289828120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 83, 122, 166, 244, 305, 332, 415, 488, 610, 664, 830, 1087, 1220, 1660, 2174, 2440, 3320, 4348, 5063, 5435, 8696, 10126, 10870, 20252, 21740, 25315, 40504, 43480, 50630, 66307, 90221, 101260, 132614, 180442, 202520, 265228, 331535, 360884, 451105, 530456, 663070, 721768, 902210, 1326140, 1804420, 2652280, 3608840, 5503481, 11006962, 22013924, 27517405, 44027848, 55034810, 110069620, 220139240]

約数ペア:

[(1, 220139240), (2, 110069620), (4, 55034810), (5, 44027848), (8, 27517405), (10, 22013924), (20, 11006962), (40, 5503481), (61, 3608840), (83, 2652280), (122, 1804420), (166, 1326140), (244, 902210), (305, 721768), (332, 663070), (415, 530456), (488, 451105), (610, 360884), (664, 331535), (830, 265228), (1087, 202520), (1220, 180442), (1660, 132614), (2174, 101260), (2440, 90221), (3320, 66307), (4348, 50630), (5063, 43480), (5435, 40504), (8696, 25315), (10126, 21740), (10870, 20252)]