248620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 540288

約数和(自身を除く): 291668

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 401, 620, 802, 1604, 2005, 4010, 8020, 12431, 24862, 49724, 62155, 124310, 248620]

約数ペア:

[(1, 248620), (2, 124310), (4, 62155), (5, 49724), (10, 24862), (20, 12431), (31, 8020), (62, 4010), (124, 2005), (155, 1604), (310, 802), (401, 620)]