12916520

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3329}}^1$

素因数の和:3437

約数の個数: 32

約数和(自身を含む): 29370600

約数和(自身を除く): 16454080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3329, 3880, 6658, 13316, 16645, 26632, 33290, 66580, 133160, 322913, 645826, 1291652, 1614565, 2583304, 3229130, 6458260, 12916520]

約数ペア:

[(1, 12916520), (2, 6458260), (4, 3229130), (5, 2583304), (8, 1614565), (10, 1291652), (20, 645826), (40, 322913), (97, 133160), (194, 66580), (388, 33290), (485, 26632), (776, 16645), (970, 13316), (1940, 6658), (3329, 3880)]