20126512

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2531}}^1$

素因数の和:2617

約数の個数: 40

約数和(自身を含む): 45211392

約数和(自身を除く): 25084880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 994, 1136, 1988, 2531, 3976, 5062, 7952, 10124, 17717, 20248, 35434, 40496, 70868, 141736, 179701, 283472, 359402, 718804, 1257907, 1437608, 2515814, 2875216, 5031628, 10063256, 20126512]

約数ペア:

[(1, 20126512), (2, 10063256), (4, 5031628), (7, 2875216), (8, 2515814), (14, 1437608), (16, 1257907), (28, 718804), (56, 359402), (71, 283472), (112, 179701), (142, 141736), (284, 70868), (497, 40496), (568, 35434), (994, 20248), (1136, 17717), (1988, 10124), (2531, 7952), (3976, 5062)]