28819340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1297}}^1$

素因数の和:1418

約数の個数: 48

約数和(自身を含む): 66727584

約数和(自身を除く): 37908244

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1010, 1111, 1297, 2020, 2222, 2594, 4444, 5188, 5555, 6485, 11110, 12970, 14267, 22220, 25940, 28534, 57068, 71335, 130997, 142670, 261994, 285340, 523988, 654985, 1309970, 1440967, 2619940, 2881934, 5763868, 7204835, 14409670, 28819340]

約数ペア:

[(1, 28819340), (2, 14409670), (4, 7204835), (5, 5763868), (10, 2881934), (11, 2619940), (20, 1440967), (22, 1309970), (44, 654985), (55, 523988), (101, 285340), (110, 261994), (202, 142670), (220, 130997), (404, 71335), (505, 57068), (1010, 28534), (1111, 25940), (1297, 22220), (2020, 14267), (2222, 12970), (2594, 11110), (4444, 6485), (5188, 5555)]