20475885

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{457}}^1$

素因数の和:597

約数の個数: 32

約数和(自身を含む): 34295040

約数和(自身を除く): 13819155

約数列:

[1, 3, 5, 15, 29, 87, 103, 145, 309, 435, 457, 515, 1371, 1545, 2285, 2987, 6855, 8961, 13253, 14935, 39759, 44805, 47071, 66265, 141213, 198795, 235355, 706065, 1365059, 4095177, 6825295, 20475885]

約数ペア:

[(1, 20475885), (3, 6825295), (5, 4095177), (15, 1365059), (29, 706065), (87, 235355), (103, 198795), (145, 141213), (309, 66265), (435, 47071), (457, 44805), (515, 39759), (1371, 14935), (1545, 13253), (2285, 8961), (2987, 6855)]