18781670

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:592

約数の個数: 32

約数和(自身を含む): 34992000

約数和(自身を除く): 16210330

約数列:

[1, 2, 5, 10, 47, 89, 94, 178, 235, 445, 449, 470, 890, 898, 2245, 4183, 4490, 8366, 20915, 21103, 39961, 41830, 42206, 79922, 105515, 199805, 211030, 399610, 1878167, 3756334, 9390835, 18781670]

約数ペア:

[(1, 18781670), (2, 9390835), (5, 3756334), (10, 1878167), (47, 399610), (89, 211030), (94, 199805), (178, 105515), (235, 79922), (445, 42206), (449, 41830), (470, 39961), (890, 21103), (898, 20915), (2245, 8366), (4183, 4490)]