18768175

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:499

約数の個数: 24

約数和(自身を含む): 24478592

約数和(自身を除く): 5710417

約数列:

[1, 5, 25, 31, 61, 155, 305, 397, 775, 1525, 1891, 1985, 9455, 9925, 12307, 24217, 47275, 61535, 121085, 307675, 605425, 750727, 3753635, 18768175]

約数ペア:

[(1, 18768175), (5, 3753635), (25, 750727), (31, 605425), (61, 307675), (155, 121085), (305, 61535), (397, 47275), (775, 24217), (1525, 12307), (1891, 9925), (1985, 9455)]