78648880

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{2281}}^1$

素因数の和:2725

約数の個数: 40

約数和(自身を含む): 183363264

約数和(自身を除く): 104714384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 862, 1724, 2155, 2281, 3448, 4310, 4562, 6896, 8620, 9124, 11405, 17240, 18248, 22810, 34480, 36496, 45620, 91240, 182480, 983111, 1966222, 3932444, 4915555, 7864888, 9831110, 15729776, 19662220, 39324440, 78648880]

約数ペア:

[(1, 78648880), (2, 39324440), (4, 19662220), (5, 15729776), (8, 9831110), (10, 7864888), (16, 4915555), (20, 3932444), (40, 1966222), (80, 983111), (431, 182480), (862, 91240), (1724, 45620), (2155, 36496), (2281, 34480), (3448, 22810), (4310, 18248), (4562, 17240), (6896, 11405), (8620, 9124)]