25920405

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:288

約数の個数: 80

約数和(自身を含む): 54641664

約数和(自身を除く): 28721259

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 41, 45, 63, 81, 105, 123, 135, 189, 205, 223, 287, 315, 369, 405, 567, 615, 669, 861, 945, 1107, 1115, 1435, 1561, 1845, 2007, 2583, 2835, 3321, 3345, 4305, 4683, 5535, 6021, 7749, 7805, 9143, 10035, 12915, 14049, 16605, 18063, 23247, 23415, 27429, 30105, 38745, 42147, 45715, 64001, 70245, 82287, 90315, 116235, 126441, 137145, 192003, 210735, 246861, 320005, 411435, 576009, 632205, 740583, 960015, 1234305, 1728027, 2880045, 3702915, 5184081, 8640135, 25920405]

約数ペア:

[(1, 25920405), (3, 8640135), (5, 5184081), (7, 3702915), (9, 2880045), (15, 1728027), (21, 1234305), (27, 960015), (35, 740583), (41, 632205), (45, 576009), (63, 411435), (81, 320005), (105, 246861), (123, 210735), (135, 192003), (189, 137145), (205, 126441), (223, 116235), (287, 90315), (315, 82287), (369, 70245), (405, 64001), (567, 45715), (615, 42147), (669, 38745), (861, 30105), (945, 27429), (1107, 23415), (1115, 23247), (1435, 18063), (1561, 16605), (1845, 14049), (2007, 12915), (2583, 10035), (2835, 9143), (3321, 7805), (3345, 7749), (4305, 6021), (4683, 5535)]