81810480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{340877}}^1$

素因数の和:340893

約数の個数: 40

約数和(自身を含む): 253613232

約数和(自身を除く): 171802752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 340877, 681754, 1022631, 1363508, 1704385, 2045262, 2727016, 3408770, 4090524, 5113155, 5454032, 6817540, 8181048, 10226310, 13635080, 16362096, 20452620, 27270160, 40905240, 81810480]

約数ペア:

[(1, 81810480), (2, 40905240), (3, 27270160), (4, 20452620), (5, 16362096), (6, 13635080), (8, 10226310), (10, 8181048), (12, 6817540), (15, 5454032), (16, 5113155), (20, 4090524), (24, 3408770), (30, 2727016), (40, 2045262), (48, 1704385), (60, 1363508), (80, 1022631), (120, 681754), (240, 340877)]