80891960

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{8831}}^1$

素因数の和:9071

約数の個数: 32

約数和(自身を含む): 182822400

約数和(自身を除く): 101930440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2290, 4580, 8831, 9160, 17662, 35324, 44155, 70648, 88310, 176620, 353240, 2022299, 4044598, 8089196, 10111495, 16178392, 20222990, 40445980, 80891960]

約数ペア:

[(1, 80891960), (2, 40445980), (4, 20222990), (5, 16178392), (8, 10111495), (10, 8089196), (20, 4044598), (40, 2022299), (229, 353240), (458, 176620), (916, 88310), (1145, 70648), (1832, 44155), (2290, 35324), (4580, 17662), (8831, 9160)]