20113288

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 42865200

約数和(自身を除く): 22751912

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 53, 82, 89, 104, 106, 164, 178, 212, 328, 356, 424, 533, 689, 712, 1066, 1157, 1378, 2132, 2173, 2314, 2756, 3649, 4264, 4346, 4628, 4717, 5512, 7298, 8692, 9256, 9434, 14596, 17384, 18868, 28249, 29192, 37736, 47437, 56498, 61321, 94874, 112996, 122642, 189748, 193397, 225992, 245284, 379496, 386794, 490568, 773588, 1547176, 2514161, 5028322, 10056644, 20113288]

約数ペア:

[(1, 20113288), (2, 10056644), (4, 5028322), (8, 2514161), (13, 1547176), (26, 773588), (41, 490568), (52, 386794), (53, 379496), (82, 245284), (89, 225992), (104, 193397), (106, 189748), (164, 122642), (178, 112996), (212, 94874), (328, 61321), (356, 56498), (424, 47437), (533, 37736), (689, 29192), (712, 28249), (1066, 18868), (1157, 17384), (1378, 14596), (2132, 9434), (2173, 9256), (2314, 8692), (2756, 7298), (3649, 5512), (4264, 4717), (4346, 4628)]