1405040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1$

素因数の和:226

約数の個数: 80

約数和(自身を含む): 4041408

約数和(自身を除く): 2636368

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 193, 208, 260, 280, 364, 386, 455, 520, 560, 728, 772, 910, 965, 1040, 1351, 1456, 1544, 1820, 1930, 2509, 2702, 3088, 3640, 3860, 5018, 5404, 6755, 7280, 7720, 10036, 10808, 12545, 13510, 15440, 17563, 20072, 21616, 25090, 27020, 35126, 40144, 50180, 54040, 70252, 87815, 100360, 108080, 140504, 175630, 200720, 281008, 351260, 702520, 1405040]

約数ペア:

[(1, 1405040), (2, 702520), (4, 351260), (5, 281008), (7, 200720), (8, 175630), (10, 140504), (13, 108080), (14, 100360), (16, 87815), (20, 70252), (26, 54040), (28, 50180), (35, 40144), (40, 35126), (52, 27020), (56, 25090), (65, 21616), (70, 20072), (80, 17563), (91, 15440), (104, 13510), (112, 12545), (130, 10808), (140, 10036), (182, 7720), (193, 7280), (208, 6755), (260, 5404), (280, 5018), (364, 3860), (386, 3640), (455, 3088), (520, 2702), (560, 2509), (728, 1930), (772, 1820), (910, 1544), (965, 1456), (1040, 1351)]