218357775

素因数分解:

$3^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{6343}}^1$

素因数の和:6382

約数の個数: 60

約数和(自身を含む): 428334192

約数和(自身を除く): 209976417

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 81, 85, 135, 153, 225, 255, 405, 425, 459, 675, 765, 1275, 1377, 2025, 2295, 3825, 6343, 6885, 11475, 19029, 31715, 34425, 57087, 95145, 107831, 158575, 171261, 285435, 323493, 475725, 513783, 539155, 856305, 970479, 1427175, 1617465, 2568915, 2695775, 2911437, 4281525, 4852395, 8087325, 8734311, 12844575, 14557185, 24261975, 43671555, 72785925, 218357775]

約数ペア:

[(1, 218357775), (3, 72785925), (5, 43671555), (9, 24261975), (15, 14557185), (17, 12844575), (25, 8734311), (27, 8087325), (45, 4852395), (51, 4281525), (75, 2911437), (81, 2695775), (85, 2568915), (135, 1617465), (153, 1427175), (225, 970479), (255, 856305), (405, 539155), (425, 513783), (459, 475725), (675, 323493), (765, 285435), (1275, 171261), (1377, 158575), (2025, 107831), (2295, 95145), (3825, 57087), (6343, 34425), (6885, 31715), (11475, 19029)]