31630360

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{2389}}^1$

素因数の和:2731

約数の個数: 32

約数和(自身を含む): 71413200

約数和(自身を除く): 39782840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2389, 2648, 3310, 4778, 6620, 9556, 11945, 13240, 19112, 23890, 47780, 95560, 790759, 1581518, 3163036, 3953795, 6326072, 7907590, 15815180, 31630360]

約数ペア:

[(1, 31630360), (2, 15815180), (4, 7907590), (5, 6326072), (8, 3953795), (10, 3163036), (20, 1581518), (40, 790759), (331, 95560), (662, 47780), (1324, 23890), (1655, 19112), (2389, 13240), (2648, 11945), (3310, 9556), (4778, 6620)]