131568680

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{46327}}^1$

素因数の和:46409

約数の個数: 32

約数和(自身を含む): 300205440

約数和(自身を除く): 168636760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 46327, 92654, 185308, 231635, 370616, 463270, 926540, 1853080, 3289217, 6578434, 13156868, 16446085, 26313736, 32892170, 65784340, 131568680]

約数ペア:

[(1, 131568680), (2, 65784340), (4, 32892170), (5, 26313736), (8, 16446085), (10, 13156868), (20, 6578434), (40, 3289217), (71, 1853080), (142, 926540), (284, 463270), (355, 370616), (568, 231635), (710, 185308), (1420, 92654), (2840, 46327)]