78286760

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{20177}}^1$

素因数の和:20285

約数の個数: 32

約数和(自身を含む): 177969960

約数和(自身を除く): 99683200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 20177, 40354, 80708, 100885, 161416, 201770, 403540, 807080, 1957169, 3914338, 7828676, 9785845, 15657352, 19571690, 39143380, 78286760]

約数ペア:

[(1, 78286760), (2, 39143380), (4, 19571690), (5, 15657352), (8, 9785845), (10, 7828676), (20, 3914338), (40, 1957169), (97, 807080), (194, 403540), (388, 201770), (485, 161416), (776, 100885), (970, 80708), (1940, 40354), (3880, 20177)]