86681960

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{27431}}^1$

素因数の和:27521

約数の個数: 32

約数和(自身を含む): 197510400

約数和(自身を除く): 110828440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 27431, 54862, 109724, 137155, 219448, 274310, 548620, 1097240, 2167049, 4334098, 8668196, 10835245, 17336392, 21670490, 43340980, 86681960]

約数ペア:

[(1, 86681960), (2, 43340980), (4, 21670490), (5, 17336392), (8, 10835245), (10, 8668196), (20, 4334098), (40, 2167049), (79, 1097240), (158, 548620), (316, 274310), (395, 219448), (632, 137155), (790, 109724), (1580, 54862), (3160, 27431)]