87810340

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1\times {\mathrm{191}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 187858944

約数和(自身を除く): 100048604

約数列:

[1, 2, 4, 5, 10, 20, 127, 181, 191, 254, 362, 382, 508, 635, 724, 764, 905, 955, 1270, 1810, 1910, 2540, 3620, 3820, 22987, 24257, 34571, 45974, 48514, 69142, 91948, 97028, 114935, 121285, 138284, 172855, 229870, 242570, 345710, 459740, 485140, 691420, 4390517, 8781034, 17562068, 21952585, 43905170, 87810340]

約数ペア:

[(1, 87810340), (2, 43905170), (4, 21952585), (5, 17562068), (10, 8781034), (20, 4390517), (127, 691420), (181, 485140), (191, 459740), (254, 345710), (362, 242570), (382, 229870), (508, 172855), (635, 138284), (724, 121285), (764, 114935), (905, 97028), (955, 91948), (1270, 69142), (1810, 48514), (1910, 45974), (2540, 34571), (3620, 24257), (3820, 22987)]