80441840

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{2333}}^1$

素因数の和:2777

約数の個数: 40

約数和(自身を含む): 187541568

約数和(自身を除く): 107099728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 862, 1724, 2155, 2333, 3448, 4310, 4666, 6896, 8620, 9332, 11665, 17240, 18664, 23330, 34480, 37328, 46660, 93320, 186640, 1005523, 2011046, 4022092, 5027615, 8044184, 10055230, 16088368, 20110460, 40220920, 80441840]

約数ペア:

[(1, 80441840), (2, 40220920), (4, 20110460), (5, 16088368), (8, 10055230), (10, 8044184), (16, 5027615), (20, 4022092), (40, 2011046), (80, 1005523), (431, 186640), (862, 93320), (1724, 46660), (2155, 37328), (2333, 34480), (3448, 23330), (4310, 18664), (4666, 17240), (6896, 11665), (8620, 9332)]