19809888

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{719}}^1$

素因数の和:780

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 41153952

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 41, 42, 48, 56, 82, 84, 96, 112, 123, 164, 168, 224, 246, 287, 328, 336, 492, 574, 656, 672, 719, 861, 984, 1148, 1312, 1438, 1722, 1968, 2157, 2296, 2876, 3444, 3936, 4314, 4592, 5033, 5752, 6888, 8628, 9184, 10066, 11504, 13776, 15099, 17256, 20132, 23008, 27552, 29479, 30198, 34512, 40264, 58958, 60396, 69024, 80528, 88437, 117916, 120792, 161056, 176874, 206353, 235832, 241584, 353748, 412706, 471664, 483168, 619059, 707496, 825412, 943328, 1238118, 1414992, 1650824, 2476236, 2829984, 3301648, 4952472, 6603296, 9904944, 19809888]

約数ペア:

[(1, 19809888), (2, 9904944), (3, 6603296), (4, 4952472), (6, 3301648), (7, 2829984), (8, 2476236), (12, 1650824), (14, 1414992), (16, 1238118), (21, 943328), (24, 825412), (28, 707496), (32, 619059), (41, 483168), (42, 471664), (48, 412706), (56, 353748), (82, 241584), (84, 235832), (96, 206353), (112, 176874), (123, 161056), (164, 120792), (168, 117916), (224, 88437), (246, 80528), (287, 69024), (328, 60396), (336, 58958), (492, 40264), (574, 34512), (656, 30198), (672, 29479), (719, 27552), (861, 23008), (984, 20132), (1148, 17256), (1312, 15099), (1438, 13776), (1722, 11504), (1968, 10066), (2157, 9184), (2296, 8628), (2876, 6888), (3444, 5752), (3936, 5033), (4314, 4592)]