38728180

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{13931}}^1$

素因数の和:14079

約数の個数: 24

約数和(自身を含む): 81920160

約数和(自身を除く): 43191980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 13931, 27862, 55724, 69655, 139310, 278620, 1936409, 3872818, 7745636, 9682045, 19364090, 38728180]

約数ペア:

[(1, 38728180), (2, 19364090), (4, 9682045), (5, 7745636), (10, 3872818), (20, 1936409), (139, 278620), (278, 139310), (556, 69655), (695, 55724), (1390, 27862), (2780, 13931)]