39908260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1447}}^1$

素因数の和:1660

約数の個数: 48

約数和(自身を含む): 96332544

約数和(自身を除く): 56424284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1447, 1970, 2758, 2894, 3940, 5516, 5788, 6895, 7235, 10129, 13790, 14470, 20258, 27580, 28940, 40516, 50645, 101290, 202580, 285059, 570118, 1140236, 1425295, 1995413, 2850590, 3990826, 5701180, 7981652, 9977065, 19954130, 39908260]

約数ペア:

[(1, 39908260), (2, 19954130), (4, 9977065), (5, 7981652), (7, 5701180), (10, 3990826), (14, 2850590), (20, 1995413), (28, 1425295), (35, 1140236), (70, 570118), (140, 285059), (197, 202580), (394, 101290), (788, 50645), (985, 40516), (1379, 28940), (1447, 27580), (1970, 20258), (2758, 14470), (2894, 13790), (3940, 10129), (5516, 7235), (5788, 6895)]