81825660

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{21647}}^1$

素因数の和:21672

約数の個数: 96

約数和(自身を含む): 290949120

約数和(自身を除く): 209123460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 21647, 43294, 64941, 86588, 108235, 129882, 151529, 194823, 216470, 259764, 303058, 324705, 389646, 432940, 454587, 584469, 606116, 649410, 757645, 779292, 909174, 974115, 1168938, 1298820, 1363761, 1515290, 1818348, 1948230, 2272935, 2337876, 2727522, 2922345, 3030580, 3896460, 4091283, 4545870, 5455044, 5844690, 6818805, 8182566, 9091740, 11689380, 13637610, 16365132, 20456415, 27275220, 40912830, 81825660]

約数ペア:

[(1, 81825660), (2, 40912830), (3, 27275220), (4, 20456415), (5, 16365132), (6, 13637610), (7, 11689380), (9, 9091740), (10, 8182566), (12, 6818805), (14, 5844690), (15, 5455044), (18, 4545870), (20, 4091283), (21, 3896460), (27, 3030580), (28, 2922345), (30, 2727522), (35, 2337876), (36, 2272935), (42, 1948230), (45, 1818348), (54, 1515290), (60, 1363761), (63, 1298820), (70, 1168938), (84, 974115), (90, 909174), (105, 779292), (108, 757645), (126, 649410), (135, 606116), (140, 584469), (180, 454587), (189, 432940), (210, 389646), (252, 324705), (270, 303058), (315, 259764), (378, 216470), (420, 194823), (540, 151529), (630, 129882), (756, 108235), (945, 86588), (1260, 64941), (1890, 43294), (3780, 21647)]