39946840

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{3253}}^1$

素因数の和:3571

約数の個数: 32

約数和(自身を含む): 90200880

約数和(自身を除く): 50254040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 3253, 6140, 6506, 12280, 13012, 16265, 26024, 32530, 65060, 130120, 998671, 1997342, 3994684, 4993355, 7989368, 9986710, 19973420, 39946840]

約数ペア:

[(1, 39946840), (2, 19973420), (4, 9986710), (5, 7989368), (8, 4993355), (10, 3994684), (20, 1997342), (40, 998671), (307, 130120), (614, 65060), (1228, 32530), (1535, 26024), (2456, 16265), (3070, 13012), (3253, 12280), (6140, 6506)]