42429740

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{21871}}^1$

素因数の和:21977

約数の個数: 24

約数和(自身を含む): 90025152

約数和(自身を除く): 47595412

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 21871, 43742, 87484, 109355, 218710, 437420, 2121487, 4242974, 8485948, 10607435, 21214870, 42429740]

約数ペア:

[(1, 42429740), (2, 21214870), (4, 10607435), (5, 8485948), (10, 4242974), (20, 2121487), (97, 437420), (194, 218710), (388, 109355), (485, 87484), (970, 43742), (1940, 21871)]