64504340

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{23203}}^1$

素因数の和:23351

約数の個数: 24

約数和(自身を含む): 136439520

約数和(自身を除く): 71935180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 23203, 46406, 92812, 116015, 232030, 464060, 3225217, 6450434, 12900868, 16126085, 32252170, 64504340]

約数ペア:

[(1, 64504340), (2, 32252170), (4, 16126085), (5, 12900868), (10, 6450434), (20, 3225217), (139, 464060), (278, 232030), (556, 116015), (695, 92812), (1390, 46406), (2780, 23203)]