155891615

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{1217}}^1$

素因数の和:1387

約数の個数: 32

約数和(自身を含む): 217836864

約数和(自身を除く): 61945249

約数列:

[1, 5, 11, 17, 55, 85, 137, 187, 685, 935, 1217, 1507, 2329, 6085, 7535, 11645, 13387, 20689, 25619, 66935, 103445, 128095, 166729, 227579, 833645, 1137895, 1834019, 2834393, 9170095, 14171965, 31178323, 155891615]

約数ペア:

[(1, 155891615), (5, 31178323), (11, 14171965), (17, 9170095), (55, 2834393), (85, 1834019), (137, 1137895), (187, 833645), (685, 227579), (935, 166729), (1217, 128095), (1507, 103445), (2329, 66935), (6085, 25619), (7535, 20689), (11645, 13387)]