64968700

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{521}}^1$

素因数の和:607

約数の個数: 72

約数和(自身を含む): 149521680

約数和(自身を除く): 84552980

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 43, 50, 58, 86, 100, 116, 145, 172, 215, 290, 430, 521, 580, 725, 860, 1042, 1075, 1247, 1450, 2084, 2150, 2494, 2605, 2900, 4300, 4988, 5210, 6235, 10420, 12470, 13025, 15109, 22403, 24940, 26050, 30218, 31175, 44806, 52100, 60436, 62350, 75545, 89612, 112015, 124700, 151090, 224030, 302180, 377725, 448060, 560075, 649687, 755450, 1120150, 1299374, 1510900, 2240300, 2598748, 3248435, 6496870, 12993740, 16242175, 32484350, 64968700]

約数ペア:

[(1, 64968700), (2, 32484350), (4, 16242175), (5, 12993740), (10, 6496870), (20, 3248435), (25, 2598748), (29, 2240300), (43, 1510900), (50, 1299374), (58, 1120150), (86, 755450), (100, 649687), (116, 560075), (145, 448060), (172, 377725), (215, 302180), (290, 224030), (430, 151090), (521, 124700), (580, 112015), (725, 89612), (860, 75545), (1042, 62350), (1075, 60436), (1247, 52100), (1450, 44806), (2084, 31175), (2150, 30218), (2494, 26050), (2605, 24940), (2900, 22403), (4300, 15109), (4988, 13025), (5210, 12470), (6235, 10420)]