68947640

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{5507}}^1$

素因数の和:5831

約数の個数: 32

約数和(自身を含む): 155656080

約数和(自身を除く): 86708440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 5507, 6260, 11014, 12520, 22028, 27535, 44056, 55070, 110140, 220280, 1723691, 3447382, 6894764, 8618455, 13789528, 17236910, 34473820, 68947640]

約数ペア:

[(1, 68947640), (2, 34473820), (4, 17236910), (5, 13789528), (8, 8618455), (10, 6894764), (20, 3447382), (40, 1723691), (313, 220280), (626, 110140), (1252, 55070), (1565, 44056), (2504, 27535), (3130, 22028), (5507, 12520), (6260, 11014)]