28778876

素因数分解:

$2^2\times 7^2\times {\mathrm{359}}^1\times {\mathrm{409}}^1$

素因数の和:786

約数の個数: 36

約数和(自身を含む): 58892400

約数和(自身を除く): 30113524

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 359, 409, 718, 818, 1436, 1636, 2513, 2863, 5026, 5726, 10052, 11452, 17591, 20041, 35182, 40082, 70364, 80164, 146831, 293662, 587324, 1027817, 2055634, 4111268, 7194719, 14389438, 28778876]

約数ペア:

[(1, 28778876), (2, 14389438), (4, 7194719), (7, 4111268), (14, 2055634), (28, 1027817), (49, 587324), (98, 293662), (196, 146831), (359, 80164), (409, 70364), (718, 40082), (818, 35182), (1436, 20041), (1636, 17591), (2513, 11452), (2863, 10052), (5026, 5726)]