518850440

素因数分解:

$2^3\times 5^1\times {\mathrm{12971261}}^1$

素因数の和:12971272

約数の個数: 16

約数和(自身を含む): 1167413580

約数和(自身を除く): 648563140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 12971261, 25942522, 51885044, 64856305, 103770088, 129712610, 259425220, 518850440]

約数ペア:

[(1, 518850440), (2, 259425220), (4, 129712610), (5, 103770088), (8, 64856305), (10, 51885044), (20, 25942522), (40, 12971261)]