16564755625

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:620

約数の個数: 80

約数和(自身を含む): 23331781440

約数和(自身を除く): 6767025815

約数列:

[1, 5, 11, 25, 43, 55, 125, 137, 215, 275, 409, 473, 625, 685, 1075, 1375, 1507, 2045, 2365, 3425, 4499, 5375, 5891, 6875, 7535, 10225, 11825, 17125, 17587, 22495, 26875, 29455, 37675, 51125, 56033, 59125, 64801, 85625, 87935, 112475, 147275, 188375, 193457, 255625, 280165, 295625, 324005, 439675, 562375, 616363, 736375, 941875, 967285, 1400825, 1620025, 2198375, 2409419, 2811875, 3081815, 3681875, 4836425, 7004125, 8100125, 10991875, 12047095, 15409075, 24182125, 26503609, 35020625, 40500625, 60235475, 77045375, 120910625, 132518045, 301177375, 385226875, 662590225, 1505886875, 3312951125, 16564755625]

約数ペア:

[(1, 16564755625), (5, 3312951125), (11, 1505886875), (25, 662590225), (43, 385226875), (55, 301177375), (125, 132518045), (137, 120910625), (215, 77045375), (275, 60235475), (409, 40500625), (473, 35020625), (625, 26503609), (685, 24182125), (1075, 15409075), (1375, 12047095), (1507, 10991875), (2045, 8100125), (2365, 7004125), (3425, 4836425), (4499, 3681875), (5375, 3081815), (5891, 2811875), (6875, 2409419), (7535, 2198375), (10225, 1620025), (11825, 1400825), (17125, 967285), (17587, 941875), (22495, 736375), (26875, 616363), (29455, 562375), (37675, 439675), (51125, 324005), (56033, 295625), (59125, 280165), (64801, 255625), (85625, 193457), (87935, 188375), (112475, 147275)]