689620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{41}}^1$

素因数の和:108

約数の個数: 36

約数和(自身を含む): 1536444

約数和(自身を除く): 846824

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 82, 116, 145, 164, 205, 290, 410, 580, 820, 841, 1189, 1682, 2378, 3364, 4205, 4756, 5945, 8410, 11890, 16820, 23780, 34481, 68962, 137924, 172405, 344810, 689620]

約数ペア:

[(1, 689620), (2, 344810), (4, 172405), (5, 137924), (10, 68962), (20, 34481), (29, 23780), (41, 16820), (58, 11890), (82, 8410), (116, 5945), (145, 4756), (164, 4205), (205, 3364), (290, 2378), (410, 1682), (580, 1189), (820, 841)]