66624680

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{6481}}^1$

素因数の和:6749

約数の個数: 32

約数和(自身を含む): 150512040

約数和(自身を除く): 83887360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 6481, 10280, 12962, 25924, 32405, 51848, 64810, 129620, 259240, 1665617, 3331234, 6662468, 8328085, 13324936, 16656170, 33312340, 66624680]

約数ペア:

[(1, 66624680), (2, 33312340), (4, 16656170), (5, 13324936), (8, 8328085), (10, 6662468), (20, 3331234), (40, 1665617), (257, 259240), (514, 129620), (1028, 64810), (1285, 51848), (2056, 32405), (2570, 25924), (5140, 12962), (6481, 10280)]