20005008

素因数分解:

$2^4\times 3^1\times {\mathrm{409}}^1\times {\mathrm{1019}}^1$

素因数の和:1439

約数の個数: 40

約数和(自身を含む): 51856800

約数和(自身を除く): 31851792

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 409, 818, 1019, 1227, 1636, 2038, 2454, 3057, 3272, 4076, 4908, 6114, 6544, 8152, 9816, 12228, 16304, 19632, 24456, 48912, 416771, 833542, 1250313, 1667084, 2500626, 3334168, 5001252, 6668336, 10002504, 20005008]

約数ペア:

[(1, 20005008), (2, 10002504), (3, 6668336), (4, 5001252), (6, 3334168), (8, 2500626), (12, 1667084), (16, 1250313), (24, 833542), (48, 416771), (409, 48912), (818, 24456), (1019, 19632), (1227, 16304), (1636, 12228), (2038, 9816), (2454, 8152), (3057, 6544), (3272, 6114), (4076, 4908)]