1991569161616

素因数分解:

$2^4\times {\mathrm{149}}^1\times {\mathrm{271}}^1\times {\mathrm{881}}^1\times {\mathrm{3499}}^1$

素因数の和:4808

約数の個数: 80

約数和(自身を含む): 3904437600000

約数和(自身を除く): 1912868438384

約数列:

[1, 2, 4, 8, 16, 149, 271, 298, 542, 596, 881, 1084, 1192, 1762, 2168, 2384, 3499, 3524, 4336, 6998, 7048, 13996, 14096, 27992, 40379, 55984, 80758, 131269, 161516, 238751, 262538, 323032, 477502, 521351, 525076, 646064, 948229, 955004, 1042702, 1050152, 1896458, 1910008, 2085404, 2100304, 3082619, 3792916, 3820016, 4170808, 6165238, 7585832, 8341616, 12330476, 15171664, 24660952, 35573899, 49321904, 71147798, 141286121, 142295596, 282572242, 284591192, 459310231, 565144484, 569182384, 835389749, 918620462, 1130288968, 1670779498, 1837240924, 2260577936, 3341558996, 3674481848, 6683117992, 7348963696, 13366235984, 124473072601, 248946145202, 497892290404, 995784580808, 1991569161616]

約数ペア:

[(1, 1991569161616), (2, 995784580808), (4, 497892290404), (8, 248946145202), (16, 124473072601), (149, 13366235984), (271, 7348963696), (298, 6683117992), (542, 3674481848), (596, 3341558996), (881, 2260577936), (1084, 1837240924), (1192, 1670779498), (1762, 1130288968), (2168, 918620462), (2384, 835389749), (3499, 569182384), (3524, 565144484), (4336, 459310231), (6998, 284591192), (7048, 282572242), (13996, 142295596), (14096, 141286121), (27992, 71147798), (40379, 49321904), (55984, 35573899), (80758, 24660952), (131269, 15171664), (161516, 12330476), (238751, 8341616), (262538, 7585832), (323032, 6165238), (477502, 4170808), (521351, 3820016), (525076, 3792916), (646064, 3082619), (948229, 2100304), (955004, 2085404), (1042702, 1910008), (1050152, 1896458)]