28439390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21383}}^1$

素因数の和:21416

約数の個数: 32

約数和(自身を含む): 61585920

約数和(自身を除く): 33146530

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 21383, 42766, 106915, 149681, 213830, 299362, 406277, 748405, 812554, 1496810, 2031385, 2843939, 4062770, 5687878, 14219695, 28439390]

約数ペア:

[(1, 28439390), (2, 14219695), (5, 5687878), (7, 4062770), (10, 2843939), (14, 2031385), (19, 1496810), (35, 812554), (38, 748405), (70, 406277), (95, 299362), (133, 213830), (190, 149681), (266, 106915), (665, 42766), (1330, 21383)]