18948520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10079}}^1$

素因数の和:10137

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 24597080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 10079, 20158, 40316, 50395, 80632, 100790, 201580, 403160, 473713, 947426, 1894852, 2368565, 3789704, 4737130, 9474260, 18948520]

約数ペア:

[(1, 18948520), (2, 9474260), (4, 4737130), (5, 3789704), (8, 2368565), (10, 1894852), (20, 947426), (40, 473713), (47, 403160), (94, 201580), (188, 100790), (235, 80632), (376, 50395), (470, 40316), (940, 20158), (1880, 10079)]