16481020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 35925120

約数和(自身を除く): 19444100

約数列:

[1, 2, 4, 5, 10, 20, 47, 89, 94, 178, 188, 197, 235, 356, 394, 445, 470, 788, 890, 940, 985, 1780, 1970, 3940, 4183, 8366, 9259, 16732, 17533, 18518, 20915, 35066, 37036, 41830, 46295, 70132, 83660, 87665, 92590, 175330, 185180, 350660, 824051, 1648102, 3296204, 4120255, 8240510, 16481020]

約数ペア:

[(1, 16481020), (2, 8240510), (4, 4120255), (5, 3296204), (10, 1648102), (20, 824051), (47, 350660), (89, 185180), (94, 175330), (178, 92590), (188, 87665), (197, 83660), (235, 70132), (356, 46295), (394, 41830), (445, 37036), (470, 35066), (788, 20915), (890, 18518), (940, 17533), (985, 16732), (1780, 9259), (1970, 8366), (3940, 4183)]