28044140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 60662784

約数和(自身を除く): 32618644

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 127, 181, 244, 254, 305, 362, 508, 610, 635, 724, 905, 1220, 1270, 1810, 2540, 3620, 7747, 11041, 15494, 22082, 22987, 30988, 38735, 44164, 45974, 55205, 77470, 91948, 110410, 114935, 154940, 220820, 229870, 459740, 1402207, 2804414, 5608828, 7011035, 14022070, 28044140]

約数ペア:

[(1, 28044140), (2, 14022070), (4, 7011035), (5, 5608828), (10, 2804414), (20, 1402207), (61, 459740), (122, 229870), (127, 220820), (181, 154940), (244, 114935), (254, 110410), (305, 91948), (362, 77470), (508, 55205), (610, 45974), (635, 44164), (724, 38735), (905, 30988), (1220, 22987), (1270, 22082), (1810, 15494), (2540, 11041), (3620, 7747)]