20694135

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:109

約数の個数: 128

約数和(自身を含む): 46448640

約数和(自身を除く): 25754505

約数列:

[1, 3, 5, 7, 11, 15, 19, 21, 23, 33, 35, 41, 55, 57, 69, 77, 95, 105, 115, 123, 133, 161, 165, 205, 209, 231, 253, 285, 287, 345, 385, 399, 437, 451, 483, 615, 627, 665, 759, 779, 805, 861, 943, 1045, 1155, 1265, 1311, 1353, 1435, 1463, 1771, 1995, 2185, 2255, 2337, 2415, 2829, 3059, 3135, 3157, 3795, 3895, 4305, 4389, 4715, 4807, 5313, 5453, 6555, 6601, 6765, 7315, 8569, 8855, 9177, 9471, 10373, 11685, 14145, 14421, 15295, 15785, 16359, 17917, 19803, 21945, 24035, 25707, 26565, 27265, 31119, 33005, 33649, 42845, 45885, 47355, 51865, 53751, 59983, 72105, 72611, 81795, 89585, 99015, 100947, 125419, 128535, 155595, 168245, 179949, 197087, 217833, 268755, 299915, 363055, 376257, 504735, 591261, 627095, 899745, 985435, 1089165, 1379609, 1881285, 2956305, 4138827, 6898045, 20694135]

約数ペア:

[(1, 20694135), (3, 6898045), (5, 4138827), (7, 2956305), (11, 1881285), (15, 1379609), (19, 1089165), (21, 985435), (23, 899745), (33, 627095), (35, 591261), (41, 504735), (55, 376257), (57, 363055), (69, 299915), (77, 268755), (95, 217833), (105, 197087), (115, 179949), (123, 168245), (133, 155595), (161, 128535), (165, 125419), (205, 100947), (209, 99015), (231, 89585), (253, 81795), (285, 72611), (287, 72105), (345, 59983), (385, 53751), (399, 51865), (437, 47355), (451, 45885), (483, 42845), (615, 33649), (627, 33005), (665, 31119), (759, 27265), (779, 26565), (805, 25707), (861, 24035), (943, 21945), (1045, 19803), (1155, 17917), (1265, 16359), (1311, 15785), (1353, 15295), (1435, 14421), (1463, 14145), (1771, 11685), (1995, 10373), (2185, 9471), (2255, 9177), (2337, 8855), (2415, 8569), (2829, 7315), (3059, 6765), (3135, 6601), (3157, 6555), (3795, 5453), (3895, 5313), (4305, 4807), (4389, 4715)]