27900080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:358

約数の個数: 80

約数和(自身を含む): 70724640

約数和(自身を除く): 42824560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 139, 193, 208, 260, 278, 386, 520, 556, 695, 772, 965, 1040, 1112, 1390, 1544, 1807, 1930, 2224, 2509, 2780, 3088, 3614, 3860, 5018, 5560, 7228, 7720, 9035, 10036, 11120, 12545, 14456, 15440, 18070, 20072, 25090, 26827, 28912, 36140, 40144, 50180, 53654, 72280, 100360, 107308, 134135, 144560, 200720, 214616, 268270, 348751, 429232, 536540, 697502, 1073080, 1395004, 1743755, 2146160, 2790008, 3487510, 5580016, 6975020, 13950040, 27900080]

約数ペア:

[(1, 27900080), (2, 13950040), (4, 6975020), (5, 5580016), (8, 3487510), (10, 2790008), (13, 2146160), (16, 1743755), (20, 1395004), (26, 1073080), (40, 697502), (52, 536540), (65, 429232), (80, 348751), (104, 268270), (130, 214616), (139, 200720), (193, 144560), (208, 134135), (260, 107308), (278, 100360), (386, 72280), (520, 53654), (556, 50180), (695, 40144), (772, 36140), (965, 28912), (1040, 26827), (1112, 25090), (1390, 20072), (1544, 18070), (1807, 15440), (1930, 14456), (2224, 12545), (2509, 11120), (2780, 10036), (3088, 9035), (3614, 7720), (3860, 7228), (5018, 5560)]