1991368720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{119101}}^1$

素因数の和:119144

約数の個数: 80

約数和(自身を含む): 5316713280

約数和(自身を除く): 3325344560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1520, 1672, 2090, 3344, 4180, 8360, 16720, 119101, 238202, 476404, 595505, 952808, 1191010, 1310111, 1905616, 2262919, 2382020, 2620222, 4525838, 4764040, 5240444, 6550555, 9051676, 9528080, 10480888, 11314595, 13101110, 18103352, 20961776, 22629190, 24892109, 26202220, 36206704, 45258380, 49784218, 52404440, 90516760, 99568436, 104808880, 124460545, 181033520, 199136872, 248921090, 398273744, 497842180, 995684360, 1991368720]

約数ペア:

[(1, 1991368720), (2, 995684360), (4, 497842180), (5, 398273744), (8, 248921090), (10, 199136872), (11, 181033520), (16, 124460545), (19, 104808880), (20, 99568436), (22, 90516760), (38, 52404440), (40, 49784218), (44, 45258380), (55, 36206704), (76, 26202220), (80, 24892109), (88, 22629190), (95, 20961776), (110, 18103352), (152, 13101110), (176, 11314595), (190, 10480888), (209, 9528080), (220, 9051676), (304, 6550555), (380, 5240444), (418, 4764040), (440, 4525838), (760, 2620222), (836, 2382020), (880, 2262919), (1045, 1905616), (1520, 1310111), (1672, 1191010), (2090, 952808), (3344, 595505), (4180, 476404), (8360, 238202), (16720, 119101)]