81660704

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{541}}^1$

素因数の和:693

約数の個数: 48

約数和(自身を含む): 165949560

約数和(自身を除く): 84288856

約数列:

[1, 2, 4, 8, 16, 32, 53, 89, 106, 178, 212, 356, 424, 541, 712, 848, 1082, 1424, 1696, 2164, 2848, 4328, 4717, 8656, 9434, 17312, 18868, 28673, 37736, 48149, 57346, 75472, 96298, 114692, 150944, 192596, 229384, 385192, 458768, 770384, 917536, 1540768, 2551897, 5103794, 10207588, 20415176, 40830352, 81660704]

約数ペア:

[(1, 81660704), (2, 40830352), (4, 20415176), (8, 10207588), (16, 5103794), (32, 2551897), (53, 1540768), (89, 917536), (106, 770384), (178, 458768), (212, 385192), (356, 229384), (424, 192596), (541, 150944), (712, 114692), (848, 96298), (1082, 75472), (1424, 57346), (1696, 48149), (2164, 37736), (2848, 28673), (4328, 18868), (4717, 17312), (8656, 9434)]