218949820

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{1013}}^1$

素因数の和:1230

約数の個数: 48

約数和(自身を含む): 469149408

約数和(自身を除く): 250199588

約数列:

[1, 2, 4, 5, 10, 20, 101, 107, 202, 214, 404, 428, 505, 535, 1010, 1013, 1070, 2020, 2026, 2140, 4052, 5065, 10130, 10807, 20260, 21614, 43228, 54035, 102313, 108070, 108391, 204626, 216140, 216782, 409252, 433564, 511565, 541955, 1023130, 1083910, 2046260, 2167820, 10947491, 21894982, 43789964, 54737455, 109474910, 218949820]

約数ペア:

[(1, 218949820), (2, 109474910), (4, 54737455), (5, 43789964), (10, 21894982), (20, 10947491), (101, 2167820), (107, 2046260), (202, 1083910), (214, 1023130), (404, 541955), (428, 511565), (505, 433564), (535, 409252), (1010, 216782), (1013, 216140), (1070, 204626), (2020, 108391), (2026, 108070), (2140, 102313), (4052, 54035), (5065, 43228), (10130, 21614), (10807, 20260)]