26991440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:484

約数の個数: 80

約数和(自身を含む): 72412032

約数和(自身を除く): 45420592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 307, 314, 560, 614, 628, 785, 1099, 1228, 1256, 1535, 1570, 2149, 2198, 2456, 2512, 3070, 3140, 4298, 4396, 4912, 5495, 6140, 6280, 8596, 8792, 10745, 10990, 12280, 12560, 17192, 17584, 21490, 21980, 24560, 34384, 42980, 43960, 48199, 85960, 87920, 96398, 171920, 192796, 240995, 337393, 385592, 481990, 674786, 771184, 963980, 1349572, 1686965, 1927960, 2699144, 3373930, 3855920, 5398288, 6747860, 13495720, 26991440]

約数ペア:

[(1, 26991440), (2, 13495720), (4, 6747860), (5, 5398288), (7, 3855920), (8, 3373930), (10, 2699144), (14, 1927960), (16, 1686965), (20, 1349572), (28, 963980), (35, 771184), (40, 674786), (56, 481990), (70, 385592), (80, 337393), (112, 240995), (140, 192796), (157, 171920), (280, 96398), (307, 87920), (314, 85960), (560, 48199), (614, 43960), (628, 42980), (785, 34384), (1099, 24560), (1228, 21980), (1256, 21490), (1535, 17584), (1570, 17192), (2149, 12560), (2198, 12280), (2456, 10990), (2512, 10745), (3070, 8792), (3140, 8596), (4298, 6280), (4396, 6140), (4912, 5495)]