83870020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1979}}^1$

素因数の和:2164

約数の個数: 48

約数和(自身を含む): 190935360

約数和(自身を除く): 107065340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 163, 260, 326, 652, 815, 1630, 1979, 2119, 3260, 3958, 4238, 7916, 8476, 9895, 10595, 19790, 21190, 25727, 39580, 42380, 51454, 102908, 128635, 257270, 322577, 514540, 645154, 1290308, 1612885, 3225770, 4193501, 6451540, 8387002, 16774004, 20967505, 41935010, 83870020]

約数ペア:

[(1, 83870020), (2, 41935010), (4, 20967505), (5, 16774004), (10, 8387002), (13, 6451540), (20, 4193501), (26, 3225770), (52, 1612885), (65, 1290308), (130, 645154), (163, 514540), (260, 322577), (326, 257270), (652, 128635), (815, 102908), (1630, 51454), (1979, 42380), (2119, 39580), (3260, 25727), (3958, 21190), (4238, 19790), (7916, 10595), (8476, 9895)]