31888760

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1637}}^1$

素因数の和:2135

約数の個数: 32

約数和(自身を含む): 71940960

約数和(自身を除く): 40052200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1637, 1948, 2435, 3274, 3896, 4870, 6548, 8185, 9740, 13096, 16370, 19480, 32740, 65480, 797219, 1594438, 3188876, 3986095, 6377752, 7972190, 15944380, 31888760]

約数ペア:

[(1, 31888760), (2, 15944380), (4, 7972190), (5, 6377752), (8, 3986095), (10, 3188876), (20, 1594438), (40, 797219), (487, 65480), (974, 32740), (1637, 19480), (1948, 16370), (2435, 13096), (3274, 9740), (3896, 8185), (4870, 6548)]