20209880

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7541}}^1$

素因数の和:7619

約数の個数: 32

約数和(自身を含む): 46157040

約数和(自身を除く): 25947160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 7541, 15082, 30164, 37705, 60328, 75410, 150820, 301640, 505247, 1010494, 2020988, 2526235, 4041976, 5052470, 10104940, 20209880]

約数ペア:

[(1, 20209880), (2, 10104940), (4, 5052470), (5, 4041976), (8, 2526235), (10, 2020988), (20, 1010494), (40, 505247), (67, 301640), (134, 150820), (268, 75410), (335, 60328), (536, 37705), (670, 30164), (1340, 15082), (2680, 7541)]