20324360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2503}}^1$

素因数の和:2550

約数の個数: 64

約数和(自身を含む): 54086400

約数和(自身を除く): 33762040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 2503, 4060, 5006, 8120, 10012, 12515, 17521, 20024, 25030, 35042, 50060, 70084, 72587, 87605, 100120, 140168, 145174, 175210, 290348, 350420, 362935, 508109, 580696, 700840, 725870, 1016218, 1451740, 2032436, 2540545, 2903480, 4064872, 5081090, 10162180, 20324360]

約数ペア:

[(1, 20324360), (2, 10162180), (4, 5081090), (5, 4064872), (7, 2903480), (8, 2540545), (10, 2032436), (14, 1451740), (20, 1016218), (28, 725870), (29, 700840), (35, 580696), (40, 508109), (56, 362935), (58, 350420), (70, 290348), (116, 175210), (140, 145174), (145, 140168), (203, 100120), (232, 87605), (280, 72587), (290, 70084), (406, 50060), (580, 35042), (812, 25030), (1015, 20024), (1160, 17521), (1624, 12515), (2030, 10012), (2503, 8120), (4060, 5006)]