16645240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5861}}^1$

素因数の和:5943

約数の個数: 32

約数和(自身を含む): 37985760

約数和(自身を除く): 21340520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 5861, 11722, 23444, 29305, 46888, 58610, 117220, 234440, 416131, 832262, 1664524, 2080655, 3329048, 4161310, 8322620, 16645240]

約数ペア:

[(1, 16645240), (2, 8322620), (4, 4161310), (5, 3329048), (8, 2080655), (10, 1664524), (20, 832262), (40, 416131), (71, 234440), (142, 117220), (284, 58610), (355, 46888), (568, 29305), (710, 23444), (1420, 11722), (2840, 5861)]