664354320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{395449}}^1$

素因数の和:395472

約数の個数: 80

約数和(自身を含む): 2353718400

約数和(自身を除く): 1689364080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 395449, 790898, 1186347, 1581796, 1977245, 2372694, 2768143, 3163592, 3954490, 4745388, 5536286, 5931735, 6327184, 7908980, 8304429, 9490776, 11072572, 11863470, 13840715, 15817960, 16608858, 18981552, 22145144, 23726940, 27681430, 31635920, 33217716, 41522145, 44290288, 47453880, 55362860, 66435432, 83044290, 94907760, 110725720, 132870864, 166088580, 221451440, 332177160, 664354320]

約数ペア:

[(1, 664354320), (2, 332177160), (3, 221451440), (4, 166088580), (5, 132870864), (6, 110725720), (7, 94907760), (8, 83044290), (10, 66435432), (12, 55362860), (14, 47453880), (15, 44290288), (16, 41522145), (20, 33217716), (21, 31635920), (24, 27681430), (28, 23726940), (30, 22145144), (35, 18981552), (40, 16608858), (42, 15817960), (48, 13840715), (56, 11863470), (60, 11072572), (70, 9490776), (80, 8304429), (84, 7908980), (105, 6327184), (112, 5931735), (120, 5536286), (140, 4745388), (168, 3954490), (210, 3163592), (240, 2768143), (280, 2372694), (336, 1977245), (420, 1581796), (560, 1186347), (840, 790898), (1680, 395449)]