18265520

素因数分解:

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

素因数の和:239

約数の個数: 120

約数和(自身を含む): 52826976

約数和(自身を除く): 34561456

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, 169, 182, 193, 208, 260, 280, 338, 364, 386, 455, 520, 560, 676, 728, 772, 845, 910, 965, 1040, 1183, 1351, 1352, 1456, 1544, 1690, 1820, 1930, 2366, 2509, 2702, 2704, 3088, 3380, 3640, 3860, 4732, 5018, 5404, 5915, 6755, 6760, 7280, 7720, 9464, 10036, 10808, 11830, 12545, 13510, 13520, 15440, 17563, 18928, 20072, 21616, 23660, 25090, 27020, 32617, 35126, 40144, 47320, 50180, 54040, 65234, 70252, 87815, 94640, 100360, 108080, 130468, 140504, 163085, 175630, 200720, 228319, 260936, 281008, 326170, 351260, 456638, 521872, 652340, 702520, 913276, 1141595, 1304680, 1405040, 1826552, 2283190, 2609360, 3653104, 4566380, 9132760, 18265520]

約数ペア:

[(1, 18265520), (2, 9132760), (4, 4566380), (5, 3653104), (7, 2609360), (8, 2283190), (10, 1826552), (13, 1405040), (14, 1304680), (16, 1141595), (20, 913276), (26, 702520), (28, 652340), (35, 521872), (40, 456638), (52, 351260), (56, 326170), (65, 281008), (70, 260936), (80, 228319), (91, 200720), (104, 175630), (112, 163085), (130, 140504), (140, 130468), (169, 108080), (182, 100360), (193, 94640), (208, 87815), (260, 70252), (280, 65234), (338, 54040), (364, 50180), (386, 47320), (455, 40144), (520, 35126), (560, 32617), (676, 27020), (728, 25090), (772, 23660), (845, 21616), (910, 20072), (965, 18928), (1040, 17563), (1183, 15440), (1351, 13520), (1352, 13510), (1456, 12545), (1544, 11830), (1690, 10808), (1820, 10036), (1930, 9464), (2366, 7720), (2509, 7280), (2702, 6760), (2704, 6755), (3088, 5915), (3380, 5404), (3640, 5018), (3860, 4732)]