20339980

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{12253}}^1$

素因数の和:12345

約数の個数: 24

約数和(自身を含む): 43232112

約数和(自身を除く): 22892132

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 12253, 24506, 49012, 61265, 122530, 245060, 1016999, 2033998, 4067996, 5084995, 10169990, 20339980]

約数ペア:

[(1, 20339980), (2, 10169990), (4, 5084995), (5, 4067996), (10, 2033998), (20, 1016999), (83, 245060), (166, 122530), (332, 61265), (415, 49012), (830, 24506), (1660, 12253)]