18339580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1297}}^1$

素因数の和:1414

約数の個数: 48

約数和(自身を含む): 44485056

約数和(自身を除く): 26145476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1297, 1414, 2020, 2594, 2828, 3535, 5188, 6485, 7070, 9079, 12970, 14140, 18158, 25940, 36316, 45395, 90790, 130997, 181580, 261994, 523988, 654985, 916979, 1309970, 1833958, 2619940, 3667916, 4584895, 9169790, 18339580]

約数ペア:

[(1, 18339580), (2, 9169790), (4, 4584895), (5, 3667916), (7, 2619940), (10, 1833958), (14, 1309970), (20, 916979), (28, 654985), (35, 523988), (70, 261994), (101, 181580), (140, 130997), (202, 90790), (404, 45395), (505, 36316), (707, 25940), (1010, 18158), (1297, 14140), (1414, 12970), (2020, 9079), (2594, 7070), (2828, 6485), (3535, 5188)]