20191628175

素因数分解:

$3^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{113}}^1\times {\mathrm{23131}}^1$

素因数の和:23360

約数の個数: 48

約数和(自身を含む): 34007371008

約数和(自身を除く): 13815742833

約数列:

[1, 3, 5, 15, 25, 75, 103, 113, 309, 339, 515, 565, 1545, 1695, 2575, 2825, 7725, 8475, 11639, 23131, 34917, 58195, 69393, 115655, 174585, 290975, 346965, 578275, 872925, 1734825, 2382493, 2613803, 7147479, 7841409, 11912465, 13069015, 35737395, 39207045, 59562325, 65345075, 178686975, 196035225, 269221709, 807665127, 1346108545, 4038325635, 6730542725, 20191628175]

約数ペア:

[(1, 20191628175), (3, 6730542725), (5, 4038325635), (15, 1346108545), (25, 807665127), (75, 269221709), (103, 196035225), (113, 178686975), (309, 65345075), (339, 59562325), (515, 39207045), (565, 35737395), (1545, 13069015), (1695, 11912465), (2575, 7841409), (2825, 7147479), (7725, 2613803), (8475, 2382493), (11639, 1734825), (23131, 872925), (34917, 578275), (58195, 346965), (69393, 290975), (115655, 174585)]