7020405

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:80

約数の個数: 128

約数和(自身を含む): 16588800

約数和(自身を除く): 9568395

約数列:

[1, 3, 5, 7, 9, 15, 17, 19, 21, 23, 27, 35, 45, 51, 57, 63, 69, 85, 95, 105, 115, 119, 133, 135, 153, 161, 171, 189, 207, 255, 285, 315, 323, 345, 357, 391, 399, 437, 459, 483, 513, 595, 621, 665, 765, 805, 855, 945, 969, 1035, 1071, 1173, 1197, 1311, 1449, 1615, 1785, 1955, 1995, 2185, 2261, 2295, 2415, 2565, 2737, 2907, 3059, 3105, 3213, 3519, 3591, 3933, 4347, 4845, 5355, 5865, 5985, 6555, 6783, 7245, 7429, 8211, 8721, 9177, 10557, 11305, 11799, 13685, 14535, 15295, 16065, 17595, 17955, 19665, 20349, 21735, 22287, 24633, 27531, 33915, 37145, 41055, 43605, 45885, 52003, 52785, 58995, 61047, 66861, 73899, 82593, 101745, 111435, 123165, 137655, 156009, 200583, 260015, 305235, 334305, 369495, 412965, 468027, 780045, 1002915, 1404081, 2340135, 7020405]

約数ペア:

[(1, 7020405), (3, 2340135), (5, 1404081), (7, 1002915), (9, 780045), (15, 468027), (17, 412965), (19, 369495), (21, 334305), (23, 305235), (27, 260015), (35, 200583), (45, 156009), (51, 137655), (57, 123165), (63, 111435), (69, 101745), (85, 82593), (95, 73899), (105, 66861), (115, 61047), (119, 58995), (133, 52785), (135, 52003), (153, 45885), (161, 43605), (171, 41055), (189, 37145), (207, 33915), (255, 27531), (285, 24633), (315, 22287), (323, 21735), (345, 20349), (357, 19665), (391, 17955), (399, 17595), (437, 16065), (459, 15295), (483, 14535), (513, 13685), (595, 11799), (621, 11305), (665, 10557), (765, 9177), (805, 8721), (855, 8211), (945, 7429), (969, 7245), (1035, 6783), (1071, 6555), (1173, 5985), (1197, 5865), (1311, 5355), (1449, 4845), (1615, 4347), (1785, 3933), (1955, 3591), (1995, 3519), (2185, 3213), (2261, 3105), (2295, 3059), (2415, 2907), (2565, 2737)]