7864040

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^2\times {\mathrm{89}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 18281700

約数和(自身を除く): 10417660

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 89, 94, 178, 188, 235, 356, 376, 445, 470, 712, 890, 940, 1780, 1880, 2209, 3560, 4183, 4418, 8366, 8836, 11045, 16732, 17672, 20915, 22090, 33464, 41830, 44180, 83660, 88360, 167320, 196601, 393202, 786404, 983005, 1572808, 1966010, 3932020, 7864040]

約数ペア:

[(1, 7864040), (2, 3932020), (4, 1966010), (5, 1572808), (8, 983005), (10, 786404), (20, 393202), (40, 196601), (47, 167320), (89, 88360), (94, 83660), (178, 44180), (188, 41830), (235, 33464), (356, 22090), (376, 20915), (445, 17672), (470, 16732), (712, 11045), (890, 8836), (940, 8366), (1780, 4418), (1880, 4183), (2209, 3560)]