18331580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2539}}^1$

素因数の和:2586

約数の個数: 36

約数和(自身を含む): 40645080

約数和(自身を除く): 22313500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 2539, 3610, 5078, 7220, 10156, 12695, 25390, 48241, 50780, 96482, 192964, 241205, 482410, 916579, 964820, 1833158, 3666316, 4582895, 9165790, 18331580]

約数ペア:

[(1, 18331580), (2, 9165790), (4, 4582895), (5, 3666316), (10, 1833158), (19, 964820), (20, 916579), (38, 482410), (76, 241205), (95, 192964), (190, 96482), (361, 50780), (380, 48241), (722, 25390), (1444, 12695), (1805, 10156), (2539, 7220), (3610, 5078)]