15967820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{401}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 36874656

約数和(自身を除く): 20906836

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 401, 724, 802, 905, 1604, 1810, 1991, 2005, 3620, 3982, 4010, 4411, 7964, 8020, 8822, 9955, 17644, 19910, 22055, 39820, 44110, 72581, 88220, 145162, 290324, 362905, 725810, 798391, 1451620, 1596782, 3193564, 3991955, 7983910, 15967820]

約数ペア:

[(1, 15967820), (2, 7983910), (4, 3991955), (5, 3193564), (10, 1596782), (11, 1451620), (20, 798391), (22, 725810), (44, 362905), (55, 290324), (110, 145162), (181, 88220), (220, 72581), (362, 44110), (401, 39820), (724, 22055), (802, 19910), (905, 17644), (1604, 9955), (1810, 8822), (1991, 8020), (2005, 7964), (3620, 4411), (3982, 4010)]