13563740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 29804544

約数和(自身を除く): 16240804

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 131, 155, 167, 262, 310, 334, 524, 620, 655, 668, 835, 1310, 1670, 2620, 3340, 4061, 5177, 8122, 10354, 16244, 20305, 20708, 21877, 25885, 40610, 43754, 51770, 81220, 87508, 103540, 109385, 218770, 437540, 678187, 1356374, 2712748, 3390935, 6781870, 13563740]

約数ペア:

[(1, 13563740), (2, 6781870), (4, 3390935), (5, 2712748), (10, 1356374), (20, 678187), (31, 437540), (62, 218770), (124, 109385), (131, 103540), (155, 87508), (167, 81220), (262, 51770), (310, 43754), (334, 40610), (524, 25885), (620, 21877), (655, 20708), (668, 20305), (835, 16244), (1310, 10354), (1670, 8122), (2620, 5177), (3340, 4061)]