246481240

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{19687}}^1$

素因数の和:20011

約数の個数: 32

約数和(自身を含む): 556382880

約数和(自身を除く): 309901640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6260, 12520, 19687, 39374, 78748, 98435, 157496, 196870, 393740, 787480, 6162031, 12324062, 24648124, 30810155, 49296248, 61620310, 123240620, 246481240]

約数ペア:

[(1, 246481240), (2, 123240620), (4, 61620310), (5, 49296248), (8, 30810155), (10, 24648124), (20, 12324062), (40, 6162031), (313, 787480), (626, 393740), (1252, 196870), (1565, 157496), (2504, 98435), (3130, 78748), (6260, 39374), (12520, 19687)]