20122390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2887}}^1$

素因数の和:2952

約数の個数: 32

約数和(自身を含む): 39299904

約数和(自身を除く): 19177514

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 170, 205, 410, 697, 1394, 2887, 3485, 5774, 6970, 14435, 28870, 49079, 98158, 118367, 236734, 245395, 490790, 591835, 1183670, 2012239, 4024478, 10061195, 20122390]

約数ペア:

[(1, 20122390), (2, 10061195), (5, 4024478), (10, 2012239), (17, 1183670), (34, 591835), (41, 490790), (82, 245395), (85, 236734), (170, 118367), (205, 98158), (410, 49079), (697, 28870), (1394, 14435), (2887, 6970), (3485, 5774)]