78630140

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{40531}}^1$

素因数の和:40637

約数の個数: 24

約数和(自身を含む): 166829712

約数和(自身を除く): 88199572

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 40531, 81062, 162124, 202655, 405310, 810620, 3931507, 7863014, 15726028, 19657535, 39315070, 78630140]

約数ペア:

[(1, 78630140), (2, 39315070), (4, 19657535), (5, 15726028), (10, 7863014), (20, 3931507), (97, 810620), (194, 405310), (388, 202655), (485, 162124), (970, 81062), (1940, 40531)]