20800528

素因数分解:

$2^4\times 7^1\times {\mathrm{229}}^1\times {\mathrm{811}}^1$

素因数の和:1055

約数の個数: 40

約数和(自身を含む): 46316480

約数和(自身を除く): 25515952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 229, 458, 811, 916, 1603, 1622, 1832, 3206, 3244, 3664, 5677, 6412, 6488, 11354, 12824, 12976, 22708, 25648, 45416, 90832, 185719, 371438, 742876, 1300033, 1485752, 2600066, 2971504, 5200132, 10400264, 20800528]

約数ペア:

[(1, 20800528), (2, 10400264), (4, 5200132), (7, 2971504), (8, 2600066), (14, 1485752), (16, 1300033), (28, 742876), (56, 371438), (112, 185719), (229, 90832), (458, 45416), (811, 25648), (916, 22708), (1603, 12976), (1622, 12824), (1832, 11354), (3206, 6488), (3244, 6412), (3664, 5677)]