81963648

素因数分解:

$2^7\times 3^2\times {\mathrm{13}}^2\times {\mathrm{421}}^1$

素因数の和:467

約数の個数: 144

約数和(自身を含む): 256004190

約数和(自身を除く): 174040542

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 64, 72, 78, 96, 104, 117, 128, 144, 156, 169, 192, 208, 234, 288, 312, 338, 384, 416, 421, 468, 507, 576, 624, 676, 832, 842, 936, 1014, 1152, 1248, 1263, 1352, 1521, 1664, 1684, 1872, 2028, 2496, 2526, 2704, 3042, 3368, 3744, 3789, 4056, 4992, 5052, 5408, 5473, 6084, 6736, 7488, 7578, 8112, 10104, 10816, 10946, 12168, 13472, 14976, 15156, 16224, 16419, 20208, 21632, 21892, 24336, 26944, 30312, 32448, 32838, 40416, 43784, 48672, 49257, 53888, 60624, 64896, 65676, 71149, 80832, 87568, 97344, 98514, 121248, 131352, 142298, 161664, 175136, 194688, 197028, 213447, 242496, 262704, 284596, 350272, 394056, 426894, 484992, 525408, 569192, 640341, 700544, 788112, 853788, 1050816, 1138384, 1280682, 1576224, 1707576, 2101632, 2276768, 2561364, 3152448, 3415152, 4553536, 5122728, 6304896, 6830304, 9107072, 10245456, 13660608, 20490912, 27321216, 40981824, 81963648]

約数ペア:

[(1, 81963648), (2, 40981824), (3, 27321216), (4, 20490912), (6, 13660608), (8, 10245456), (9, 9107072), (12, 6830304), (13, 6304896), (16, 5122728), (18, 4553536), (24, 3415152), (26, 3152448), (32, 2561364), (36, 2276768), (39, 2101632), (48, 1707576), (52, 1576224), (64, 1280682), (72, 1138384), (78, 1050816), (96, 853788), (104, 788112), (117, 700544), (128, 640341), (144, 569192), (156, 525408), (169, 484992), (192, 426894), (208, 394056), (234, 350272), (288, 284596), (312, 262704), (338, 242496), (384, 213447), (416, 197028), (421, 194688), (468, 175136), (507, 161664), (576, 142298), (624, 131352), (676, 121248), (832, 98514), (842, 97344), (936, 87568), (1014, 80832), (1152, 71149), (1248, 65676), (1263, 64896), (1352, 60624), (1521, 53888), (1664, 49257), (1684, 48672), (1872, 43784), (2028, 40416), (2496, 32838), (2526, 32448), (2704, 30312), (3042, 26944), (3368, 24336), (3744, 21892), (3789, 21632), (4056, 20208), (4992, 16419), (5052, 16224), (5408, 15156), (5473, 14976), (6084, 13472), (6736, 12168), (7488, 10946), (7578, 10816), (8112, 10104)]