2120803775

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{397}}^1$

素因数の和:612

約数の個数: 48

約数和(自身を含む): 2790559488

約数和(自身を除く): 669755713

約数列:

[1, 5, 25, 31, 61, 113, 155, 305, 397, 565, 775, 1525, 1891, 1985, 2825, 3503, 6893, 9455, 9925, 12307, 17515, 24217, 34465, 44861, 47275, 61535, 87575, 121085, 172325, 213683, 224305, 307675, 605425, 750727, 1068415, 1121525, 1390691, 2736521, 3753635, 5342075, 6953455, 13682605, 18768175, 34767275, 68413025, 84832151, 424160755, 2120803775]

約数ペア:

[(1, 2120803775), (5, 424160755), (25, 84832151), (31, 68413025), (61, 34767275), (113, 18768175), (155, 13682605), (305, 6953455), (397, 5342075), (565, 3753635), (775, 2736521), (1525, 1390691), (1891, 1121525), (1985, 1068415), (2825, 750727), (3503, 605425), (6893, 307675), (9455, 224305), (9925, 213683), (12307, 172325), (17515, 121085), (24217, 87575), (34465, 61535), (44861, 47275)]