18580040

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9883}}^1$

素因数の和:9941

約数の個数: 32

約数和(自身を含む): 42698880

約数和(自身を除く): 24118840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 9883, 19766, 39532, 49415, 79064, 98830, 197660, 395320, 464501, 929002, 1858004, 2322505, 3716008, 4645010, 9290020, 18580040]

約数ペア:

[(1, 18580040), (2, 9290020), (4, 4645010), (5, 3716008), (8, 2322505), (10, 1858004), (20, 929002), (40, 464501), (47, 395320), (94, 197660), (188, 98830), (235, 79064), (376, 49415), (470, 39532), (940, 19766), (1880, 9883)]