66966860

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{34519}}^1$

素因数の和:34625

約数の個数: 24

約数和(自身を含む): 142084320

約数和(自身を除く): 75117460

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 34519, 69038, 138076, 172595, 345190, 690380, 3348343, 6696686, 13393372, 16741715, 33483430, 66966860]

約数ペア:

[(1, 66966860), (2, 33483430), (4, 16741715), (5, 13393372), (10, 6696686), (20, 3348343), (97, 690380), (194, 345190), (388, 172595), (485, 138076), (970, 69038), (1940, 34519)]