1245943216

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{156683}}^1$

素因数の和:156769

約数の個数: 40

約数和(自身を含む): 2797749504

約数和(自身を除く): 1551806288

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 994, 1136, 1988, 3976, 7952, 156683, 313366, 626732, 1096781, 1253464, 2193562, 2506928, 4387124, 8774248, 11124493, 17548496, 22248986, 44497972, 77871451, 88995944, 155742902, 177991888, 311485804, 622971608, 1245943216]

約数ペア:

[(1, 1245943216), (2, 622971608), (4, 311485804), (7, 177991888), (8, 155742902), (14, 88995944), (16, 77871451), (28, 44497972), (56, 22248986), (71, 17548496), (112, 11124493), (142, 8774248), (284, 4387124), (497, 2506928), (568, 2193562), (994, 1253464), (1136, 1096781), (1988, 626732), (3976, 313366), (7952, 156683)]