820664036

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{2557}}^1$

素因数の和:2724

約数の個数: 48

約数和(自身を含む): 1564268160

約数和(自身を除く): 743604124

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 103, 164, 206, 412, 779, 1558, 1957, 2557, 3116, 3914, 4223, 5114, 7828, 8446, 10228, 16892, 48583, 80237, 97166, 104837, 160474, 194332, 209674, 263371, 320948, 419348, 526742, 1053484, 1991903, 3983806, 5004049, 7967612, 10008098, 10798211, 20016196, 21596422, 43192844, 205166009, 410332018, 820664036]

約数ペア:

[(1, 820664036), (2, 410332018), (4, 205166009), (19, 43192844), (38, 21596422), (41, 20016196), (76, 10798211), (82, 10008098), (103, 7967612), (164, 5004049), (206, 3983806), (412, 1991903), (779, 1053484), (1558, 526742), (1957, 419348), (2557, 320948), (3116, 263371), (3914, 209674), (4223, 194332), (5114, 160474), (7828, 104837), (8446, 97166), (10228, 80237), (16892, 48583)]