388725640

素因数分解:

$2^3\times 5^1\times {\mathrm{2971}}^1\times {\mathrm{3271}}^1$

素因数の和:6253

約数の個数: 32

約数和(自身を含む): 875194560

約数和(自身を除く): 486468920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2971, 3271, 5942, 6542, 11884, 13084, 14855, 16355, 23768, 26168, 29710, 32710, 59420, 65420, 118840, 130840, 9718141, 19436282, 38872564, 48590705, 77745128, 97181410, 194362820, 388725640]

約数ペア:

[(1, 388725640), (2, 194362820), (4, 97181410), (5, 77745128), (8, 48590705), (10, 38872564), (20, 19436282), (40, 9718141), (2971, 130840), (3271, 118840), (5942, 65420), (6542, 59420), (11884, 32710), (13084, 29710), (14855, 26168), (16355, 23768)]