71329240

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{12829}}^1$

素因数の和:12979

約数の個数: 32

約数和(自身を含む): 161658000

約数和(自身を除く): 90328760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 12829, 25658, 51316, 64145, 102632, 128290, 256580, 513160, 1783231, 3566462, 7132924, 8916155, 14265848, 17832310, 35664620, 71329240]

約数ペア:

[(1, 71329240), (2, 35664620), (4, 17832310), (5, 14265848), (8, 8916155), (10, 7132924), (20, 3566462), (40, 1783231), (139, 513160), (278, 256580), (556, 128290), (695, 102632), (1112, 64145), (1390, 51316), (2780, 25658), (5560, 12829)]