81106668

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{419}}^1$

素因数の和:731

約数の個数: 72

約数和(自身を含む): 217089600

約数和(自身を除く): 135982932

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 283, 342, 419, 566, 684, 838, 849, 1132, 1257, 1676, 1698, 2514, 2547, 3396, 3771, 5028, 5094, 5377, 7542, 7961, 10188, 10754, 15084, 15922, 16131, 21508, 23883, 31844, 32262, 47766, 48393, 64524, 71649, 95532, 96786, 118577, 143298, 193572, 237154, 286596, 355731, 474308, 711462, 1067193, 1422924, 2134386, 2252963, 4268772, 4505926, 6758889, 9011852, 13517778, 20276667, 27035556, 40553334, 81106668]

約数ペア:

[(1, 81106668), (2, 40553334), (3, 27035556), (4, 20276667), (6, 13517778), (9, 9011852), (12, 6758889), (18, 4505926), (19, 4268772), (36, 2252963), (38, 2134386), (57, 1422924), (76, 1067193), (114, 711462), (171, 474308), (228, 355731), (283, 286596), (342, 237154), (419, 193572), (566, 143298), (684, 118577), (838, 96786), (849, 95532), (1132, 71649), (1257, 64524), (1676, 48393), (1698, 47766), (2514, 32262), (2547, 31844), (3396, 23883), (3771, 21508), (5028, 16131), (5094, 15922), (5377, 15084), (7542, 10754), (7961, 10188)]