8178920

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2801}}^1$

素因数の和:2885

約数の個数: 32

約数和(自身を含む): 18661320

約数和(自身を除く): 10482400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2801, 2920, 5602, 11204, 14005, 22408, 28010, 56020, 112040, 204473, 408946, 817892, 1022365, 1635784, 2044730, 4089460, 8178920]

約数ペア:

[(1, 8178920), (2, 4089460), (4, 2044730), (5, 1635784), (8, 1022365), (10, 817892), (20, 408946), (40, 204473), (73, 112040), (146, 56020), (292, 28010), (365, 22408), (584, 14005), (730, 11204), (1460, 5602), (2801, 2920)]