40006280

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{1621}}^1$

素因数の和:2249

約数の個数: 32

約数和(自身を含む): 90215640

約数和(自身を除く): 50209360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 1234, 1621, 2468, 3085, 3242, 4936, 6170, 6484, 8105, 12340, 12968, 16210, 24680, 32420, 64840, 1000157, 2000314, 4000628, 5000785, 8001256, 10001570, 20003140, 40006280]

約数ペア:

[(1, 40006280), (2, 20003140), (4, 10001570), (5, 8001256), (8, 5000785), (10, 4000628), (20, 2000314), (40, 1000157), (617, 64840), (1234, 32420), (1621, 24680), (2468, 16210), (3085, 12968), (3242, 12340), (4936, 8105), (6170, 6484)]