64043120

素因数分解:

$2^4\times 5^1\times {\mathrm{800539}}^1$

素因数の和:800552

約数の個数: 20

約数和(自身を含む): 148900440

約数和(自身を除く): 84857320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 800539, 1601078, 3202156, 4002695, 6404312, 8005390, 12808624, 16010780, 32021560, 64043120]

約数ペア:

[(1, 64043120), (2, 32021560), (4, 16010780), (5, 12808624), (8, 8005390), (10, 6404312), (16, 4002695), (20, 3202156), (40, 1601078), (80, 800539)]