20314120

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1931}}^1$

素因数の和:2205

約数の個数: 32

約数和(自身を含む): 45904320

約数和(自身を除く): 25590200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 1931, 2104, 2630, 3862, 5260, 7724, 9655, 10520, 15448, 19310, 38620, 77240, 507853, 1015706, 2031412, 2539265, 4062824, 5078530, 10157060, 20314120]

約数ペア:

[(1, 20314120), (2, 10157060), (4, 5078530), (5, 4062824), (8, 2539265), (10, 2031412), (20, 1015706), (40, 507853), (263, 77240), (526, 38620), (1052, 19310), (1315, 15448), (1931, 10520), (2104, 9655), (2630, 7724), (3862, 5260)]