408020048

素因数分解:

$2^4\times {\mathrm{199}}^1\times {\mathrm{128147}}^1$

素因数の和:128354

約数の個数: 20

約数和(自身を含む): 794517600

約数和(自身を除く): 386497552

約数列:

[1, 2, 4, 8, 16, 199, 398, 796, 1592, 3184, 128147, 256294, 512588, 1025176, 2050352, 25501253, 51002506, 102005012, 204010024, 408020048]

約数ペア:

[(1, 408020048), (2, 204010024), (4, 102005012), (8, 51002506), (16, 25501253), (199, 2050352), (398, 1025176), (796, 512588), (1592, 256294), (3184, 128147)]