20160045

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 39584376

約数和(自身を除く): 19424331

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 73, 85, 95, 153, 171, 219, 255, 285, 323, 361, 365, 657, 765, 855, 969, 1083, 1095, 1241, 1387, 1615, 1805, 2907, 3249, 3285, 3723, 4161, 4845, 5415, 6137, 6205, 6935, 11169, 12483, 14535, 16245, 18411, 18615, 20805, 23579, 26353, 30685, 55233, 55845, 62415, 70737, 79059, 92055, 117895, 131765, 212211, 237177, 276165, 353685, 395295, 448001, 1061055, 1185885, 1344003, 2240005, 4032009, 6720015, 20160045]

約数ペア:

[(1, 20160045), (3, 6720015), (5, 4032009), (9, 2240005), (15, 1344003), (17, 1185885), (19, 1061055), (45, 448001), (51, 395295), (57, 353685), (73, 276165), (85, 237177), (95, 212211), (153, 131765), (171, 117895), (219, 92055), (255, 79059), (285, 70737), (323, 62415), (361, 55845), (365, 55233), (657, 30685), (765, 26353), (855, 23579), (969, 20805), (1083, 18615), (1095, 18411), (1241, 16245), (1387, 14535), (1615, 12483), (1805, 11169), (2907, 6935), (3249, 6205), (3285, 6137), (3723, 5415), (4161, 4845)]