17068420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 37255680

約数和(自身を除く): 20187260

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 172, 178, 215, 223, 356, 430, 445, 446, 860, 890, 892, 1115, 1780, 2230, 3827, 4460, 7654, 9589, 15308, 19135, 19178, 19847, 38270, 38356, 39694, 47945, 76540, 79388, 95890, 99235, 191780, 198470, 396940, 853421, 1706842, 3413684, 4267105, 8534210, 17068420]

約数ペア:

[(1, 17068420), (2, 8534210), (4, 4267105), (5, 3413684), (10, 1706842), (20, 853421), (43, 396940), (86, 198470), (89, 191780), (172, 99235), (178, 95890), (215, 79388), (223, 76540), (356, 47945), (430, 39694), (445, 38356), (446, 38270), (860, 19847), (890, 19178), (892, 19135), (1115, 15308), (1780, 9589), (2230, 7654), (3827, 4460)]