278779984

素因数分解:

$2^4\times 7^1\times {\mathrm{2489107}}^1$

素因数の和:2489122

約数の個数: 20

約数和(自身を含む): 617298784

約数和(自身を除く): 338518800

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2489107, 4978214, 9956428, 17423749, 19912856, 34847498, 39825712, 69694996, 139389992, 278779984]

約数ペア:

[(1, 278779984), (2, 139389992), (4, 69694996), (7, 39825712), (8, 34847498), (14, 19912856), (16, 17423749), (28, 9956428), (56, 4978214), (112, 2489107)]