20180949140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{143107}}^1$

素因数の和:143768

約数の個数: 48

約数和(自身を含む): 46305169344

約数和(自身を除く): 26124220204

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 641, 1282, 2564, 3205, 6410, 7051, 12820, 14102, 28204, 35255, 70510, 141020, 143107, 286214, 572428, 715535, 1431070, 1574177, 2862140, 3148354, 6296708, 7870885, 15741770, 31483540, 91731587, 183463174, 366926348, 458657935, 917315870, 1009047457, 1834631740, 2018094914, 4036189828, 5045237285, 10090474570, 20180949140]

約数ペア:

[(1, 20180949140), (2, 10090474570), (4, 5045237285), (5, 4036189828), (10, 2018094914), (11, 1834631740), (20, 1009047457), (22, 917315870), (44, 458657935), (55, 366926348), (110, 183463174), (220, 91731587), (641, 31483540), (1282, 15741770), (2564, 7870885), (3205, 6296708), (6410, 3148354), (7051, 2862140), (12820, 1574177), (14102, 1431070), (28204, 715535), (35255, 572428), (70510, 286214), (141020, 143107)]