20989389568

素因数分解:

$2^8\times 7^1\times {\mathrm{127}}^1\times {\mathrm{92227}}^1$

素因数の和:92377

約数の個数: 72

約数和(自身を含む): 48259592192

約数和(自身を除く): 27270202624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 127, 128, 224, 254, 256, 448, 508, 889, 896, 1016, 1778, 1792, 2032, 3556, 4064, 7112, 8128, 14224, 16256, 28448, 32512, 56896, 92227, 113792, 184454, 227584, 368908, 645589, 737816, 1291178, 1475632, 2582356, 2951264, 5164712, 5902528, 10329424, 11712829, 11805056, 20658848, 23425658, 23610112, 41317696, 46851316, 81989803, 82635392, 93702632, 163979606, 165270784, 187405264, 327959212, 374810528, 655918424, 749621056, 1311836848, 1499242112, 2623673696, 2998484224, 5247347392, 10494694784, 20989389568]

約数ペア:

[(1, 20989389568), (2, 10494694784), (4, 5247347392), (7, 2998484224), (8, 2623673696), (14, 1499242112), (16, 1311836848), (28, 749621056), (32, 655918424), (56, 374810528), (64, 327959212), (112, 187405264), (127, 165270784), (128, 163979606), (224, 93702632), (254, 82635392), (256, 81989803), (448, 46851316), (508, 41317696), (889, 23610112), (896, 23425658), (1016, 20658848), (1778, 11805056), (1792, 11712829), (2032, 10329424), (3556, 5902528), (4064, 5164712), (7112, 2951264), (8128, 2582356), (14224, 1475632), (16256, 1291178), (28448, 737816), (32512, 645589), (56896, 368908), (92227, 227584), (113792, 184454)]