215466740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{2081}}^1$

素因数の和:2288

約数の個数: 48

約数和(自身を含む): 470098944

約数和(自身を除く): 254632204

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 167, 310, 334, 620, 668, 835, 1670, 2081, 3340, 4162, 5177, 8324, 10354, 10405, 20708, 20810, 25885, 41620, 51770, 64511, 103540, 129022, 258044, 322555, 347527, 645110, 695054, 1290220, 1390108, 1737635, 3475270, 6950540, 10773337, 21546674, 43093348, 53866685, 107733370, 215466740]

約数ペア:

[(1, 215466740), (2, 107733370), (4, 53866685), (5, 43093348), (10, 21546674), (20, 10773337), (31, 6950540), (62, 3475270), (124, 1737635), (155, 1390108), (167, 1290220), (310, 695054), (334, 645110), (620, 347527), (668, 322555), (835, 258044), (1670, 129022), (2081, 103540), (3340, 64511), (4162, 51770), (5177, 41620), (8324, 25885), (10354, 20810), (10405, 20708)]