2153540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 4838400

約数和(自身を除く): 2684860

約数列:

[1, 2, 4, 5, 10, 20, 29, 47, 58, 79, 94, 116, 145, 158, 188, 235, 290, 316, 395, 470, 580, 790, 940, 1363, 1580, 2291, 2726, 3713, 4582, 5452, 6815, 7426, 9164, 11455, 13630, 14852, 18565, 22910, 27260, 37130, 45820, 74260, 107677, 215354, 430708, 538385, 1076770, 2153540]

約数ペア:

[(1, 2153540), (2, 1076770), (4, 538385), (5, 430708), (10, 215354), (20, 107677), (29, 74260), (47, 45820), (58, 37130), (79, 27260), (94, 22910), (116, 18565), (145, 14852), (158, 13630), (188, 11455), (235, 9164), (290, 7426), (316, 6815), (395, 5452), (470, 4582), (580, 3713), (790, 2726), (940, 2291), (1363, 1580)]