28127920

素因数分解:

$2^4\times 5^1\times {\mathrm{351599}}^1$

素因数の和:351612

約数の個数: 20

約数和(自身を含む): 65397600

約数和(自身を除く): 37269680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 351599, 703198, 1406396, 1757995, 2812792, 3515990, 5625584, 7031980, 14063960, 28127920]

約数ペア:

[(1, 28127920), (2, 14063960), (4, 7031980), (5, 5625584), (8, 3515990), (10, 2812792), (16, 1757995), (20, 1406396), (40, 703198), (80, 351599)]