20123992970

素因数分解:

$2^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1523}}^1\times {\mathrm{1999}}^1$

素因数の和:4190

約数の個数: 32

約数和(自身を含む): 36319968000

約数和(自身を除く): 16195975030

約数列:

[1, 2, 5, 10, 661, 1322, 1523, 1999, 3046, 3305, 3998, 6610, 7615, 9995, 15230, 19990, 1006703, 1321339, 2013406, 2642678, 3044477, 5033515, 6088954, 6606695, 10067030, 13213390, 15222385, 30444770, 2012399297, 4024798594, 10061996485, 20123992970]

約数ペア:

[(1, 20123992970), (2, 10061996485), (5, 4024798594), (10, 2012399297), (661, 30444770), (1322, 15222385), (1523, 13213390), (1999, 10067030), (3046, 6606695), (3305, 6088954), (3998, 5033515), (6610, 3044477), (7615, 2642678), (9995, 2013406), (15230, 1321339), (19990, 1006703)]