31248620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3877}}^1$

素因数の和:3930

約数の個数: 48

約数和(自身を含む): 72968448

約数和(自身を除く): 41719828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 3877, 4030, 7754, 8060, 15508, 19385, 38770, 50401, 77540, 100802, 120187, 201604, 240374, 252005, 480748, 504010, 600935, 1008020, 1201870, 1562431, 2403740, 3124862, 6249724, 7812155, 15624310, 31248620]

約数ペア:

[(1, 31248620), (2, 15624310), (4, 7812155), (5, 6249724), (10, 3124862), (13, 2403740), (20, 1562431), (26, 1201870), (31, 1008020), (52, 600935), (62, 504010), (65, 480748), (124, 252005), (130, 240374), (155, 201604), (260, 120187), (310, 100802), (403, 77540), (620, 50401), (806, 38770), (1612, 19385), (2015, 15508), (3877, 8060), (4030, 7754)]