1999331720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{943081}}^1$

素因数の和:943145

約数の個数: 32

約数和(自身を含む): 4583378520

約数和(自身を除く): 2584046800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 943081, 1886162, 3772324, 4715405, 7544648, 9430810, 18861620, 37723240, 49983293, 99966586, 199933172, 249916465, 399866344, 499832930, 999665860, 1999331720]

約数ペア:

[(1, 1999331720), (2, 999665860), (4, 499832930), (5, 399866344), (8, 249916465), (10, 199933172), (20, 99966586), (40, 49983293), (53, 37723240), (106, 18861620), (212, 9430810), (265, 7544648), (424, 4715405), (530, 3772324), (1060, 1886162), (2120, 943081)]