20544880

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3833}}^1$

素因数の和:3913

約数の個数: 40

約数和(自身を含む): 48492432

約数和(自身を除く): 27947552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 3833, 5360, 7666, 15332, 19165, 30664, 38330, 61328, 76660, 153320, 256811, 306640, 513622, 1027244, 1284055, 2054488, 2568110, 4108976, 5136220, 10272440, 20544880]

約数ペア:

[(1, 20544880), (2, 10272440), (4, 5136220), (5, 4108976), (8, 2568110), (10, 2054488), (16, 1284055), (20, 1027244), (40, 513622), (67, 306640), (80, 256811), (134, 153320), (268, 76660), (335, 61328), (536, 38330), (670, 30664), (1072, 19165), (1340, 15332), (2680, 7666), (3833, 5360)]