278599360

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{347}}^1$

素因数の和:570

約数の個数: 112

約数和(自身を含む): 720218016

約数和(自身を除く): 441618656

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 193, 208, 260, 320, 347, 386, 416, 520, 694, 772, 832, 965, 1040, 1388, 1544, 1735, 1930, 2080, 2509, 2776, 3088, 3470, 3860, 4160, 4511, 5018, 5552, 6176, 6940, 7720, 9022, 10036, 11104, 12352, 12545, 13880, 15440, 18044, 20072, 22208, 22555, 25090, 27760, 30880, 36088, 40144, 45110, 50180, 55520, 61760, 66971, 72176, 80288, 90220, 100360, 111040, 133942, 144352, 160576, 180440, 200720, 267884, 288704, 334855, 360880, 401440, 535768, 669710, 721760, 802880, 870623, 1071536, 1339420, 1443520, 1741246, 2143072, 2678840, 3482492, 4286144, 4353115, 5357680, 6964984, 8706230, 10715360, 13929968, 17412460, 21430720, 27859936, 34824920, 55719872, 69649840, 139299680, 278599360]

約数ペア:

[(1, 278599360), (2, 139299680), (4, 69649840), (5, 55719872), (8, 34824920), (10, 27859936), (13, 21430720), (16, 17412460), (20, 13929968), (26, 10715360), (32, 8706230), (40, 6964984), (52, 5357680), (64, 4353115), (65, 4286144), (80, 3482492), (104, 2678840), (130, 2143072), (160, 1741246), (193, 1443520), (208, 1339420), (260, 1071536), (320, 870623), (347, 802880), (386, 721760), (416, 669710), (520, 535768), (694, 401440), (772, 360880), (832, 334855), (965, 288704), (1040, 267884), (1388, 200720), (1544, 180440), (1735, 160576), (1930, 144352), (2080, 133942), (2509, 111040), (2776, 100360), (3088, 90220), (3470, 80288), (3860, 72176), (4160, 66971), (4511, 61760), (5018, 55520), (5552, 50180), (6176, 45110), (6940, 40144), (7720, 36088), (9022, 30880), (10036, 27760), (11104, 25090), (12352, 22555), (12545, 22208), (13880, 20072), (15440, 18044)]