68912680

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{17761}}^1$

素因数の和:17869

約数の個数: 32

約数和(自身を含む): 156660840

約数和(自身を除く): 87748160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 17761, 35522, 71044, 88805, 142088, 177610, 355220, 710440, 1722817, 3445634, 6891268, 8614085, 13782536, 17228170, 34456340, 68912680]

約数ペア:

[(1, 68912680), (2, 34456340), (4, 17228170), (5, 13782536), (8, 8614085), (10, 6891268), (20, 3445634), (40, 1722817), (97, 710440), (194, 355220), (388, 177610), (485, 142088), (776, 88805), (970, 71044), (1940, 35522), (3880, 17761)]