20172745940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{135007}}^1$

素因数の和:135288

約数の個数: 48

約数和(自身を含む): 43911081984

約数和(自身を除く): 23738336044

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 241, 310, 482, 620, 964, 1205, 2410, 4820, 7471, 14942, 29884, 37355, 74710, 135007, 149420, 270014, 540028, 675035, 1350070, 2700140, 4185217, 8370434, 16740868, 20926085, 32536687, 41852170, 65073374, 83704340, 130146748, 162683435, 325366870, 650733740, 1008637297, 2017274594, 4034549188, 5043186485, 10086372970, 20172745940]

約数ペア:

[(1, 20172745940), (2, 10086372970), (4, 5043186485), (5, 4034549188), (10, 2017274594), (20, 1008637297), (31, 650733740), (62, 325366870), (124, 162683435), (155, 130146748), (241, 83704340), (310, 65073374), (482, 41852170), (620, 32536687), (964, 20926085), (1205, 16740868), (2410, 8370434), (4820, 4185217), (7471, 2700140), (14942, 1350070), (29884, 675035), (37355, 540028), (74710, 270014), (135007, 149420)]