20112570

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{457}}^1$

素因数の和:636

約数の個数: 64

約数和(自身を含む): 54080640

約数和(自身を除く): 33968070

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 163, 270, 326, 457, 489, 815, 914, 978, 1371, 1467, 1630, 2285, 2445, 2742, 2934, 4113, 4401, 4570, 4890, 6855, 7335, 8226, 8802, 12339, 13710, 14670, 20565, 22005, 24678, 41130, 44010, 61695, 74491, 123390, 148982, 223473, 372455, 446946, 670419, 744910, 1117365, 1340838, 2011257, 2234730, 3352095, 4022514, 6704190, 10056285, 20112570]

約数ペア:

[(1, 20112570), (2, 10056285), (3, 6704190), (5, 4022514), (6, 3352095), (9, 2234730), (10, 2011257), (15, 1340838), (18, 1117365), (27, 744910), (30, 670419), (45, 446946), (54, 372455), (90, 223473), (135, 148982), (163, 123390), (270, 74491), (326, 61695), (457, 44010), (489, 41130), (815, 24678), (914, 22005), (978, 20565), (1371, 14670), (1467, 13710), (1630, 12339), (2285, 8802), (2445, 8226), (2742, 7335), (2934, 6855), (4113, 4890), (4401, 4570)]