51681880

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{9431}}^1$

素因数の和:9579

約数の個数: 32

約数和(自身を含む): 117145440

約数和(自身を除く): 65463560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 9431, 18862, 37724, 47155, 75448, 94310, 188620, 377240, 1292047, 2584094, 5168188, 6460235, 10336376, 12920470, 25840940, 51681880]

約数ペア:

[(1, 51681880), (2, 25840940), (4, 12920470), (5, 10336376), (8, 6460235), (10, 5168188), (20, 2584094), (40, 1292047), (137, 377240), (274, 188620), (548, 94310), (685, 75448), (1096, 47155), (1370, 37724), (2740, 18862), (5480, 9431)]