20510896

素因数分解:

$2^4\times 7^1\times {\mathrm{367}}^1\times {\mathrm{499}}^1$

素因数の和:881

約数の個数: 40

約数和(自身を含む): 45632000

約数和(自身を除く): 25121104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 367, 499, 734, 998, 1468, 1996, 2569, 2936, 3493, 3992, 5138, 5872, 6986, 7984, 10276, 13972, 20552, 27944, 41104, 55888, 183133, 366266, 732532, 1281931, 1465064, 2563862, 2930128, 5127724, 10255448, 20510896]

約数ペア:

[(1, 20510896), (2, 10255448), (4, 5127724), (7, 2930128), (8, 2563862), (14, 1465064), (16, 1281931), (28, 732532), (56, 366266), (112, 183133), (367, 55888), (499, 41104), (734, 27944), (998, 20552), (1468, 13972), (1996, 10276), (2569, 7984), (2936, 6986), (3493, 5872), (3992, 5138)]