42765040

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1307}}^1$

素因数の和:1729

約数の個数: 40

約数和(自身を含む): 99748080

約数和(自身を除く): 56983040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1307, 1636, 2045, 2614, 3272, 4090, 5228, 6535, 6544, 8180, 10456, 13070, 16360, 20912, 26140, 32720, 52280, 104560, 534563, 1069126, 2138252, 2672815, 4276504, 5345630, 8553008, 10691260, 21382520, 42765040]

約数ペア:

[(1, 42765040), (2, 21382520), (4, 10691260), (5, 8553008), (8, 5345630), (10, 4276504), (16, 2672815), (20, 2138252), (40, 1069126), (80, 534563), (409, 104560), (818, 52280), (1307, 32720), (1636, 26140), (2045, 20912), (2614, 16360), (3272, 13070), (4090, 10456), (5228, 8180), (6535, 6544)]