199984060

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{5189}}^1$

素因数の和:5286

約数の個数: 48

約数和(自身を含む): 439447680

約数和(自身を除く): 239463620

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 410, 470, 820, 940, 1927, 3854, 5189, 7708, 9635, 10378, 19270, 20756, 25945, 38540, 51890, 103780, 212749, 243883, 425498, 487766, 850996, 975532, 1063745, 1219415, 2127490, 2438830, 4254980, 4877660, 9999203, 19998406, 39996812, 49996015, 99992030, 199984060]

約数ペア:

[(1, 199984060), (2, 99992030), (4, 49996015), (5, 39996812), (10, 19998406), (20, 9999203), (41, 4877660), (47, 4254980), (82, 2438830), (94, 2127490), (164, 1219415), (188, 1063745), (205, 975532), (235, 850996), (410, 487766), (470, 425498), (820, 243883), (940, 212749), (1927, 103780), (3854, 51890), (5189, 38540), (7708, 25945), (9635, 20756), (10378, 19270)]