189995120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2161}}^1$

素因数の和:2338

約数の個数: 80

約数和(自身を含む): 508294848

約数和(自身を除く): 318299728

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 314, 560, 628, 785, 1099, 1256, 1570, 2161, 2198, 2512, 3140, 4322, 4396, 5495, 6280, 8644, 8792, 10805, 10990, 12560, 15127, 17288, 17584, 21610, 21980, 30254, 34576, 43220, 43960, 60508, 75635, 86440, 87920, 121016, 151270, 172880, 242032, 302540, 339277, 605080, 678554, 1210160, 1357108, 1696385, 2374939, 2714216, 3392770, 4749878, 5428432, 6785540, 9499756, 11874695, 13571080, 18999512, 23749390, 27142160, 37999024, 47498780, 94997560, 189995120]

約数ペア:

[(1, 189995120), (2, 94997560), (4, 47498780), (5, 37999024), (7, 27142160), (8, 23749390), (10, 18999512), (14, 13571080), (16, 11874695), (20, 9499756), (28, 6785540), (35, 5428432), (40, 4749878), (56, 3392770), (70, 2714216), (80, 2374939), (112, 1696385), (140, 1357108), (157, 1210160), (280, 678554), (314, 605080), (560, 339277), (628, 302540), (785, 242032), (1099, 172880), (1256, 151270), (1570, 121016), (2161, 87920), (2198, 86440), (2512, 75635), (3140, 60508), (4322, 43960), (4396, 43220), (5495, 34576), (6280, 30254), (8644, 21980), (8792, 21610), (10805, 17584), (10990, 17288), (12560, 15127)]