20208082180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{243647}}^1$

素因数の和:243709

約数の個数: 96

約数和(自身を含む): 51575408640

約数和(自身を除く): 31367326460

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 29, 44, 52, 55, 58, 65, 110, 116, 130, 143, 145, 220, 260, 286, 290, 319, 377, 572, 580, 638, 715, 754, 1276, 1430, 1508, 1595, 1885, 2860, 3190, 3770, 4147, 6380, 7540, 8294, 16588, 20735, 41470, 82940, 243647, 487294, 974588, 1218235, 2436470, 2680117, 3167411, 4872940, 5360234, 6334822, 7065763, 10720468, 12669644, 13400585, 14131526, 15837055, 26801170, 28263052, 31674110, 34841521, 35328815, 53602340, 63348220, 69683042, 70657630, 77723393, 91854919, 139366084, 141315260, 155446786, 174207605, 183709838, 310893572, 348415210, 367419676, 388616965, 459274595, 696830420, 777233930, 918549190, 1010404109, 1554467860, 1837098380, 2020808218, 4041616436, 5052020545, 10104041090, 20208082180]

約数ペア:

[(1, 20208082180), (2, 10104041090), (4, 5052020545), (5, 4041616436), (10, 2020808218), (11, 1837098380), (13, 1554467860), (20, 1010404109), (22, 918549190), (26, 777233930), (29, 696830420), (44, 459274595), (52, 388616965), (55, 367419676), (58, 348415210), (65, 310893572), (110, 183709838), (116, 174207605), (130, 155446786), (143, 141315260), (145, 139366084), (220, 91854919), (260, 77723393), (286, 70657630), (290, 69683042), (319, 63348220), (377, 53602340), (572, 35328815), (580, 34841521), (638, 31674110), (715, 28263052), (754, 26801170), (1276, 15837055), (1430, 14131526), (1508, 13400585), (1595, 12669644), (1885, 10720468), (2860, 7065763), (3190, 6334822), (3770, 5360234), (4147, 4872940), (6380, 3167411), (7540, 2680117), (8294, 2436470), (16588, 1218235), (20735, 974588), (41470, 487294), (82940, 243647)]