20243580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:483

約数の個数: 96

約数和(自身を含む): 65404416

約数和(自身を除く): 45160836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 157, 210, 307, 314, 420, 471, 614, 628, 785, 921, 942, 1099, 1228, 1535, 1570, 1842, 1884, 2149, 2198, 2355, 3070, 3140, 3297, 3684, 4298, 4396, 4605, 4710, 5495, 6140, 6447, 6594, 8596, 9210, 9420, 10745, 10990, 12894, 13188, 16485, 18420, 21490, 21980, 25788, 32235, 32970, 42980, 48199, 64470, 65940, 96398, 128940, 144597, 192796, 240995, 289194, 337393, 481990, 578388, 674786, 722985, 963980, 1012179, 1349572, 1445970, 1686965, 2024358, 2891940, 3373930, 4048716, 5060895, 6747860, 10121790, 20243580]

約数ペア:

[(1, 20243580), (2, 10121790), (3, 6747860), (4, 5060895), (5, 4048716), (6, 3373930), (7, 2891940), (10, 2024358), (12, 1686965), (14, 1445970), (15, 1349572), (20, 1012179), (21, 963980), (28, 722985), (30, 674786), (35, 578388), (42, 481990), (60, 337393), (70, 289194), (84, 240995), (105, 192796), (140, 144597), (157, 128940), (210, 96398), (307, 65940), (314, 64470), (420, 48199), (471, 42980), (614, 32970), (628, 32235), (785, 25788), (921, 21980), (942, 21490), (1099, 18420), (1228, 16485), (1535, 13188), (1570, 12894), (1842, 10990), (1884, 10745), (2149, 9420), (2198, 9210), (2355, 8596), (3070, 6594), (3140, 6447), (3297, 6140), (3684, 5495), (4298, 4710), (4396, 4605)]