16720531256

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{67}}^1\times {\mathrm{227}}^1$

素因数の和:386

約数の個数: 192

約数和(自身を含む): 38796589440

約数和(自身を除く): 22076058184

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 31, 44, 52, 62, 67, 88, 104, 124, 134, 143, 227, 248, 268, 286, 341, 403, 454, 536, 572, 682, 737, 806, 871, 908, 961, 1144, 1364, 1474, 1612, 1742, 1816, 1922, 2077, 2497, 2728, 2948, 2951, 3224, 3484, 3844, 4154, 4433, 4994, 5896, 5902, 6968, 7037, 7688, 8308, 8866, 9581, 9988, 10571, 11804, 12493, 14074, 15209, 16616, 17732, 19162, 19976, 21142, 22847, 23608, 24986, 27001, 28148, 30418, 32461, 35464, 38324, 42284, 45694, 49972, 54002, 56296, 60836, 64387, 64922, 76648, 77407, 84568, 91388, 91481, 99944, 108004, 121672, 128774, 129844, 137423, 154814, 167299, 182776, 182962, 197717, 216008, 218147, 257548, 259688, 274846, 297011, 309628, 334598, 365924, 395434, 436294, 471479, 515096, 549692, 594022, 619256, 669196, 708257, 731848, 790868, 837031, 872588, 942958, 1006291, 1099384, 1188044, 1338392, 1416514, 1581736, 1674062, 1745176, 1885916, 2012582, 2174887, 2376088, 2399617, 2833028, 2835911, 3348124, 3771832, 4025164, 4349774, 4799234, 5186269, 5666056, 5671822, 6129227, 6696248, 8050328, 8699548, 9207341, 9598468, 10372538, 11343644, 12258454, 14615849, 17399096, 18414682, 19196936, 20745076, 22687288, 24516908, 29231698, 31195021, 36829364, 41490152, 49033816, 58463396, 62390042, 67421497, 73658728, 116926792, 124780084, 134842994, 160774339, 190006037, 249560168, 269685988, 321548678, 380012074, 539371976, 643097356, 760024148, 1286194712, 1520048296, 2090066407, 4180132814, 8360265628, 16720531256]

約数ペア:

[(1, 16720531256), (2, 8360265628), (4, 4180132814), (8, 2090066407), (11, 1520048296), (13, 1286194712), (22, 760024148), (26, 643097356), (31, 539371976), (44, 380012074), (52, 321548678), (62, 269685988), (67, 249560168), (88, 190006037), (104, 160774339), (124, 134842994), (134, 124780084), (143, 116926792), (227, 73658728), (248, 67421497), (268, 62390042), (286, 58463396), (341, 49033816), (403, 41490152), (454, 36829364), (536, 31195021), (572, 29231698), (682, 24516908), (737, 22687288), (806, 20745076), (871, 19196936), (908, 18414682), (961, 17399096), (1144, 14615849), (1364, 12258454), (1474, 11343644), (1612, 10372538), (1742, 9598468), (1816, 9207341), (1922, 8699548), (2077, 8050328), (2497, 6696248), (2728, 6129227), (2948, 5671822), (2951, 5666056), (3224, 5186269), (3484, 4799234), (3844, 4349774), (4154, 4025164), (4433, 3771832), (4994, 3348124), (5896, 2835911), (5902, 2833028), (6968, 2399617), (7037, 2376088), (7688, 2174887), (8308, 2012582), (8866, 1885916), (9581, 1745176), (9988, 1674062), (10571, 1581736), (11804, 1416514), (12493, 1338392), (14074, 1188044), (15209, 1099384), (16616, 1006291), (17732, 942958), (19162, 872588), (19976, 837031), (21142, 790868), (22847, 731848), (23608, 708257), (24986, 669196), (27001, 619256), (28148, 594022), (30418, 549692), (32461, 515096), (35464, 471479), (38324, 436294), (42284, 395434), (45694, 365924), (49972, 334598), (54002, 309628), (56296, 297011), (60836, 274846), (64387, 259688), (64922, 257548), (76648, 218147), (77407, 216008), (84568, 197717), (91388, 182962), (91481, 182776), (99944, 167299), (108004, 154814), (121672, 137423), (128774, 129844)]