39637240

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7129}}^1$

素因数の和:7279

約数の個数: 32

約数和(自身を含む): 89838000

約数和(自身を除く): 50200760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 7129, 14258, 28516, 35645, 57032, 71290, 142580, 285160, 990931, 1981862, 3963724, 4954655, 7927448, 9909310, 19818620, 39637240]

約数ペア:

[(1, 39637240), (2, 19818620), (4, 9909310), (5, 7927448), (8, 4954655), (10, 3963724), (20, 1981862), (40, 990931), (139, 285160), (278, 142580), (556, 71290), (695, 57032), (1112, 35645), (1390, 28516), (2780, 14258), (5560, 7129)]