20876304880

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3894833}}^1$

素因数の和:3894913

約数の個数: 40

約数和(自身を含む): 49261860432

約数和(自身を除く): 28385555552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 3894833, 7789666, 15579332, 19474165, 31158664, 38948330, 62317328, 77896660, 155793320, 260953811, 311586640, 521907622, 1043815244, 1304769055, 2087630488, 2609538110, 4175260976, 5219076220, 10438152440, 20876304880]

約数ペア:

[(1, 20876304880), (2, 10438152440), (4, 5219076220), (5, 4175260976), (8, 2609538110), (10, 2087630488), (16, 1304769055), (20, 1043815244), (40, 521907622), (67, 311586640), (80, 260953811), (134, 155793320), (268, 77896660), (335, 62317328), (536, 38948330), (670, 31158664), (1072, 19474165), (1340, 15579332), (2680, 7789666), (5360, 3894833)]