8405480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:338

約数の個数: 64

約数和(自身を含む): 20528640

約数和(自身を除く): 12123160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 263, 340, 376, 470, 526, 680, 799, 940, 1052, 1315, 1598, 1880, 2104, 2630, 3196, 3995, 4471, 5260, 6392, 7990, 8942, 10520, 12361, 15980, 17884, 22355, 24722, 31960, 35768, 44710, 49444, 61805, 89420, 98888, 123610, 178840, 210137, 247220, 420274, 494440, 840548, 1050685, 1681096, 2101370, 4202740, 8405480]

約数ペア:

[(1, 8405480), (2, 4202740), (4, 2101370), (5, 1681096), (8, 1050685), (10, 840548), (17, 494440), (20, 420274), (34, 247220), (40, 210137), (47, 178840), (68, 123610), (85, 98888), (94, 89420), (136, 61805), (170, 49444), (188, 44710), (235, 35768), (263, 31960), (340, 24722), (376, 22355), (470, 17884), (526, 15980), (680, 12361), (799, 10520), (940, 8942), (1052, 7990), (1315, 6392), (1598, 5260), (1880, 4471), (2104, 3995), (2630, 3196)]