320800900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{15803}}^1$

素因数の和:15853

約数の個数: 72

約数和(自身を含む): 823072320

約数和(自身を除く): 502271420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 50, 58, 70, 100, 116, 140, 145, 175, 203, 290, 350, 406, 580, 700, 725, 812, 1015, 1450, 2030, 2900, 4060, 5075, 10150, 15803, 20300, 31606, 63212, 79015, 110621, 158030, 221242, 316060, 395075, 442484, 458287, 553105, 790150, 916574, 1106210, 1580300, 1833148, 2212420, 2291435, 2765525, 3208009, 4582870, 5531050, 6416018, 9165740, 11062100, 11457175, 12832036, 16040045, 22914350, 32080090, 45828700, 64160180, 80200225, 160400450, 320800900]

約数ペア:

[(1, 320800900), (2, 160400450), (4, 80200225), (5, 64160180), (7, 45828700), (10, 32080090), (14, 22914350), (20, 16040045), (25, 12832036), (28, 11457175), (29, 11062100), (35, 9165740), (50, 6416018), (58, 5531050), (70, 4582870), (100, 3208009), (116, 2765525), (140, 2291435), (145, 2212420), (175, 1833148), (203, 1580300), (290, 1106210), (350, 916574), (406, 790150), (580, 553105), (700, 458287), (725, 442484), (812, 395075), (1015, 316060), (1450, 221242), (2030, 158030), (2900, 110621), (4060, 79015), (5075, 63212), (10150, 31606), (15803, 20300)]