31530395

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 43243200

約数和(自身を除く): 11712805

約数列:

[1, 5, 13, 29, 43, 65, 145, 215, 377, 389, 559, 1247, 1885, 1945, 2795, 5057, 6235, 11281, 16211, 16727, 25285, 56405, 81055, 83635, 146653, 217451, 485083, 733265, 1087255, 2425415, 6306079, 31530395]

約数ペア:

[(1, 31530395), (5, 6306079), (13, 2425415), (29, 1087255), (43, 733265), (65, 485083), (145, 217451), (215, 146653), (377, 83635), (389, 81055), (559, 56405), (1247, 25285), (1885, 16727), (1945, 16211), (2795, 11281), (5057, 6235)]