990540820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{739}}^1\times {\mathrm{2311}}^1$

素因数の和:3088

約数の個数: 48

約数和(自身を含む): 2155708800

約数和(自身を除く): 1165167980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 739, 1478, 2311, 2956, 3695, 4622, 7390, 9244, 11555, 14780, 21431, 23110, 42862, 46220, 67019, 85724, 107155, 134038, 214310, 268076, 335095, 428620, 670190, 1340380, 1707829, 3415658, 6831316, 8539145, 17078290, 34156580, 49527041, 99054082, 198108164, 247635205, 495270410, 990540820]

約数ペア:

[(1, 990540820), (2, 495270410), (4, 247635205), (5, 198108164), (10, 99054082), (20, 49527041), (29, 34156580), (58, 17078290), (116, 8539145), (145, 6831316), (290, 3415658), (580, 1707829), (739, 1340380), (1478, 670190), (2311, 428620), (2956, 335095), (3695, 268076), (4622, 214310), (7390, 134038), (9244, 107155), (11555, 85724), (14780, 67019), (21431, 46220), (23110, 42862)]