81977324

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{397}}^1$

素因数の和:463

約数の個数: 72

約数和(自身を含む): 178326288

約数和(自身を除く): 96348964

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 38, 44, 52, 76, 143, 209, 247, 286, 361, 397, 418, 494, 572, 722, 794, 836, 988, 1444, 1588, 2717, 3971, 4367, 4693, 5161, 5434, 7543, 7942, 8734, 9386, 10322, 10868, 15086, 15884, 17468, 18772, 20644, 30172, 51623, 56771, 82973, 98059, 103246, 113542, 143317, 165946, 196118, 206492, 227084, 286634, 331892, 392236, 573268, 1078649, 1576487, 1863121, 2157298, 3152974, 3726242, 4314596, 6305948, 7452484, 20494331, 40988662, 81977324]

約数ペア:

[(1, 81977324), (2, 40988662), (4, 20494331), (11, 7452484), (13, 6305948), (19, 4314596), (22, 3726242), (26, 3152974), (38, 2157298), (44, 1863121), (52, 1576487), (76, 1078649), (143, 573268), (209, 392236), (247, 331892), (286, 286634), (361, 227084), (397, 206492), (418, 196118), (494, 165946), (572, 143317), (722, 113542), (794, 103246), (836, 98059), (988, 82973), (1444, 56771), (1588, 51623), (2717, 30172), (3971, 20644), (4367, 18772), (4693, 17468), (5161, 15884), (5434, 15086), (7543, 10868), (7942, 10322), (8734, 9386)]