20257486576

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{2609}}^1\times {\mathrm{25541}}^1$

素因数の和:28177

約数の個数: 40

約数和(自身を含む): 41332064400

約数和(自身を除く): 21074577824

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 2609, 5218, 10436, 20872, 25541, 41744, 49571, 51082, 99142, 102164, 198284, 204328, 396568, 408656, 485279, 793136, 970558, 1941116, 3882232, 7764464, 66636469, 133272938, 266545876, 533091752, 1066183504, 1266092911, 2532185822, 5064371644, 10128743288, 20257486576]

約数ペア:

[(1, 20257486576), (2, 10128743288), (4, 5064371644), (8, 2532185822), (16, 1266092911), (19, 1066183504), (38, 533091752), (76, 266545876), (152, 133272938), (304, 66636469), (2609, 7764464), (5218, 3882232), (10436, 1941116), (20872, 970558), (25541, 793136), (41744, 485279), (49571, 408656), (51082, 396568), (99142, 204328), (102164, 198284)]