56515040

素因数分解:

$2^5\times 5^1\times {\mathrm{421}}^1\times {\mathrm{839}}^1$

素因数の和:1275

約数の個数: 48

約数和(自身を含む): 133993440

約数和(自身を除く): 77478400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 421, 839, 842, 1678, 1684, 2105, 3356, 3368, 4195, 4210, 6712, 6736, 8390, 8420, 13424, 13472, 16780, 16840, 26848, 33560, 33680, 67120, 67360, 134240, 353219, 706438, 1412876, 1766095, 2825752, 3532190, 5651504, 7064380, 11303008, 14128760, 28257520, 56515040]

約数ペア:

[(1, 56515040), (2, 28257520), (4, 14128760), (5, 11303008), (8, 7064380), (10, 5651504), (16, 3532190), (20, 2825752), (32, 1766095), (40, 1412876), (80, 706438), (160, 353219), (421, 134240), (839, 67360), (842, 67120), (1678, 33680), (1684, 33560), (2105, 26848), (3356, 16840), (3368, 16780), (4195, 13472), (4210, 13424), (6712, 8420), (6736, 8390)]