54898960

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15959}}^1$

素因数の和:16015

約数の個数: 40

約数和(自身を含む): 130616640

約数和(自身を除く): 75717680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 15959, 31918, 63836, 79795, 127672, 159590, 255344, 319180, 638360, 686237, 1276720, 1372474, 2744948, 3431185, 5489896, 6862370, 10979792, 13724740, 27449480, 54898960]

約数ペア:

[(1, 54898960), (2, 27449480), (4, 13724740), (5, 10979792), (8, 6862370), (10, 5489896), (16, 3431185), (20, 2744948), (40, 1372474), (43, 1276720), (80, 686237), (86, 638360), (172, 319180), (215, 255344), (344, 159590), (430, 127672), (688, 79795), (860, 63836), (1720, 31918), (3440, 15959)]