81138484

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:353

約数の個数: 72

約数和(自身を含む): 177696512

約数和(自身を除く): 96558028

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 37, 68, 74, 119, 148, 238, 259, 271, 289, 476, 518, 542, 578, 629, 1036, 1084, 1156, 1258, 1897, 2023, 2516, 3794, 4046, 4403, 4607, 7588, 8092, 8806, 9214, 10027, 10693, 17612, 18428, 20054, 21386, 32249, 40108, 42772, 64498, 70189, 74851, 78319, 128996, 140378, 149702, 156638, 170459, 280756, 299404, 313276, 340918, 548233, 681836, 1096466, 1193213, 2192932, 2386426, 2897803, 4772852, 5795606, 11591212, 20284621, 40569242, 81138484]

約数ペア:

[(1, 81138484), (2, 40569242), (4, 20284621), (7, 11591212), (14, 5795606), (17, 4772852), (28, 2897803), (34, 2386426), (37, 2192932), (68, 1193213), (74, 1096466), (119, 681836), (148, 548233), (238, 340918), (259, 313276), (271, 299404), (289, 280756), (476, 170459), (518, 156638), (542, 149702), (578, 140378), (629, 128996), (1036, 78319), (1084, 74851), (1156, 70189), (1258, 64498), (1897, 42772), (2023, 40108), (2516, 32249), (3794, 21386), (4046, 20054), (4403, 18428), (4607, 17612), (7588, 10693), (8092, 10027), (8806, 9214)]