72858280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{165587}}^1$

素因数の和:165609

約数の個数: 32

約数和(自身を含む): 178835040

約数和(自身を除く): 105976760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 165587, 331174, 662348, 827935, 1324696, 1655870, 1821457, 3311740, 3642914, 6623480, 7285828, 9107285, 14571656, 18214570, 36429140, 72858280]

約数ペア:

[(1, 72858280), (2, 36429140), (4, 18214570), (5, 14571656), (8, 9107285), (10, 7285828), (11, 6623480), (20, 3642914), (22, 3311740), (40, 1821457), (44, 1655870), (55, 1324696), (88, 827935), (110, 662348), (220, 331174), (440, 165587)]