19542560

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1823}}^1$

素因数の和:1905

約数の個数: 48

約数和(自身を含む): 46884096

約数和(自身を除く): 27341536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 1823, 2144, 2680, 3646, 5360, 7292, 9115, 10720, 14584, 18230, 29168, 36460, 58336, 72920, 122141, 145840, 244282, 291680, 488564, 610705, 977128, 1221410, 1954256, 2442820, 3908512, 4885640, 9771280, 19542560]

約数ペア:

[(1, 19542560), (2, 9771280), (4, 4885640), (5, 3908512), (8, 2442820), (10, 1954256), (16, 1221410), (20, 977128), (32, 610705), (40, 488564), (67, 291680), (80, 244282), (134, 145840), (160, 122141), (268, 72920), (335, 58336), (536, 36460), (670, 29168), (1072, 18230), (1340, 14584), (1823, 10720), (2144, 9115), (2680, 7292), (3646, 5360)]