20309650

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13103}}^1$

素因数の和:13146

約数の個数: 24

約数和(自身を含む): 38997504

約数和(自身を除く): 18687854

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 13103, 26206, 65515, 131030, 327575, 406193, 655150, 812386, 2030965, 4061930, 10154825, 20309650]

約数ペア:

[(1, 20309650), (2, 10154825), (5, 4061930), (10, 2030965), (25, 812386), (31, 655150), (50, 406193), (62, 327575), (155, 131030), (310, 65515), (775, 26206), (1550, 13103)]