20087986640

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5839531}}^1$

素因数の和:5839587

約数の個数: 40

約数和(自身を含む): 47790729888

約数和(自身を除く): 27702743248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 5839531, 11679062, 23358124, 29197655, 46716248, 58395310, 93432496, 116790620, 233581240, 251099833, 467162480, 502199666, 1004399332, 1255499165, 2008798664, 2510998330, 4017597328, 5021996660, 10043993320, 20087986640]

約数ペア:

[(1, 20087986640), (2, 10043993320), (4, 5021996660), (5, 4017597328), (8, 2510998330), (10, 2008798664), (16, 1255499165), (20, 1004399332), (40, 502199666), (43, 467162480), (80, 251099833), (86, 233581240), (172, 116790620), (215, 93432496), (344, 58395310), (430, 46716248), (688, 29197655), (860, 23358124), (1720, 11679062), (3440, 5839531)]