2021307220

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{547}}^1\times {\mathrm{2531}}^1$

素因数の和:3160

約数の個数: 48

約数和(自身を含む): 4312461888

約数和(自身を除く): 2291154668

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 547, 730, 1094, 1460, 2188, 2531, 2735, 5062, 5470, 10124, 10940, 12655, 25310, 39931, 50620, 79862, 159724, 184763, 199655, 369526, 399310, 739052, 798620, 923815, 1384457, 1847630, 2768914, 3695260, 5537828, 6922285, 13844570, 27689140, 101065361, 202130722, 404261444, 505326805, 1010653610, 2021307220]

約数ペア:

[(1, 2021307220), (2, 1010653610), (4, 505326805), (5, 404261444), (10, 202130722), (20, 101065361), (73, 27689140), (146, 13844570), (292, 6922285), (365, 5537828), (547, 3695260), (730, 2768914), (1094, 1847630), (1460, 1384457), (2188, 923815), (2531, 798620), (2735, 739052), (5062, 399310), (5470, 369526), (10124, 199655), (10940, 184763), (12655, 159724), (25310, 79862), (39931, 50620)]