40564851640

素因数分解:

$2^3\times 5^1\times {\mathrm{1871}}^1\times {\mathrm{542021}}^1$

素因数の和:543903

約数の個数: 32

約数和(自身を含む): 91319866560

約数和(自身を除く): 50755014920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1871, 3742, 7484, 9355, 14968, 18710, 37420, 74840, 542021, 1084042, 2168084, 2710105, 4336168, 5420210, 10840420, 21680840, 1014121291, 2028242582, 4056485164, 5070606455, 8112970328, 10141212910, 20282425820, 40564851640]

約数ペア:

[(1, 40564851640), (2, 20282425820), (4, 10141212910), (5, 8112970328), (8, 5070606455), (10, 4056485164), (20, 2028242582), (40, 1014121291), (1871, 21680840), (3742, 10840420), (7484, 5420210), (9355, 4336168), (14968, 2710105), (18710, 2168084), (37420, 1084042), (74840, 542021)]