82881080

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{15817}}^1$

素因数の和:15959

約数の個数: 32

約数和(自身を含む): 187917840

約数和(自身を除く): 105036760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 15817, 31634, 63268, 79085, 126536, 158170, 316340, 632680, 2072027, 4144054, 8288108, 10360135, 16576216, 20720270, 41440540, 82881080]

約数ペア:

[(1, 82881080), (2, 41440540), (4, 20720270), (5, 16576216), (8, 10360135), (10, 8288108), (20, 4144054), (40, 2072027), (131, 632680), (262, 316340), (524, 158170), (655, 126536), (1048, 79085), (1310, 63268), (2620, 31634), (5240, 15817)]