20180851220

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7259299}}^1$

素因数の和:7259447

約数の個数: 24

約数和(自身を含む): 42684684000

約数和(自身を除く): 22503832780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 7259299, 14518598, 29037196, 36296495, 72592990, 145185980, 1009042561, 2018085122, 4036170244, 5045212805, 10090425610, 20180851220]

約数ペア:

[(1, 20180851220), (2, 10090425610), (4, 5045212805), (5, 4036170244), (10, 2018085122), (20, 1009042561), (139, 145185980), (278, 72592990), (556, 36296495), (695, 29037196), (1390, 14518598), (2780, 7259299)]