4917820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 10936800

約数和(自身を除く): 6018980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 139, 145, 244, 278, 290, 305, 556, 580, 610, 695, 1220, 1390, 1769, 2780, 3538, 4031, 7076, 8062, 8479, 8845, 16124, 16958, 17690, 20155, 33916, 35380, 40310, 42395, 80620, 84790, 169580, 245891, 491782, 983564, 1229455, 2458910, 4917820]

約数ペア:

[(1, 4917820), (2, 2458910), (4, 1229455), (5, 983564), (10, 491782), (20, 245891), (29, 169580), (58, 84790), (61, 80620), (116, 42395), (122, 40310), (139, 35380), (145, 33916), (244, 20155), (278, 17690), (290, 16958), (305, 16124), (556, 8845), (580, 8479), (610, 8062), (695, 7076), (1220, 4031), (1390, 3538), (1769, 2780)]