86840360

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{5581}}^1$

素因数の和:5981

約数の個数: 32

約数和(自身を含む): 195928200

約数和(自身を除く): 109087840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 5581, 7780, 11162, 15560, 22324, 27905, 44648, 55810, 111620, 223240, 2171009, 4342018, 8684036, 10855045, 17368072, 21710090, 43420180, 86840360]

約数ペア:

[(1, 86840360), (2, 43420180), (4, 21710090), (5, 17368072), (8, 10855045), (10, 8684036), (20, 4342018), (40, 2171009), (389, 223240), (778, 111620), (1556, 55810), (1945, 44648), (3112, 27905), (3890, 22324), (5581, 15560), (7780, 11162)]