31030360

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5581}}^1$

素因数の和:5731

約数の個数: 32

約数和(自身を含む): 70333200

約数和(自身を除く): 39302840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 5581, 11162, 22324, 27905, 44648, 55810, 111620, 223240, 775759, 1551518, 3103036, 3878795, 6206072, 7757590, 15515180, 31030360]

約数ペア:

[(1, 31030360), (2, 15515180), (4, 7757590), (5, 6206072), (8, 3878795), (10, 3103036), (20, 1551518), (40, 775759), (139, 223240), (278, 111620), (556, 55810), (695, 44648), (1112, 27905), (1390, 22324), (2780, 11162), (5560, 5581)]