12970840

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3343}}^1$

素因数の和:3451

約数の個数: 32

約数和(自身を含む): 29494080

約数和(自身を除く): 16523240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3343, 3880, 6686, 13372, 16715, 26744, 33430, 66860, 133720, 324271, 648542, 1297084, 1621355, 2594168, 3242710, 6485420, 12970840]

約数ペア:

[(1, 12970840), (2, 6485420), (4, 3242710), (5, 2594168), (8, 1621355), (10, 1297084), (20, 648542), (40, 324271), (97, 133720), (194, 66860), (388, 33430), (485, 26744), (776, 16715), (970, 13372), (1940, 6686), (3343, 3880)]