811760140

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{182009}}^1$

素因数の和:182241

約数の個数: 24

約数和(自身を含む): 1712350080

約数和(自身を除く): 900589940

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 182009, 364018, 728036, 910045, 1820090, 3640180, 40588007, 81176014, 162352028, 202940035, 405880070, 811760140]

約数ペア:

[(1, 811760140), (2, 405880070), (4, 202940035), (5, 162352028), (10, 81176014), (20, 40588007), (223, 3640180), (446, 1820090), (892, 910045), (1115, 728036), (2230, 364018), (4460, 182009)]