64994385

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{647}}^1$

素因数の和:873

約数の個数: 32

約数和(自身を含む): 107557632

約数和(自身を除く): 42563247

約数列:

[1, 3, 5, 15, 37, 111, 181, 185, 543, 555, 647, 905, 1941, 2715, 3235, 6697, 9705, 20091, 23939, 33485, 71817, 100455, 117107, 119695, 351321, 359085, 585535, 1756605, 4332959, 12998877, 21664795, 64994385]

約数ペア:

[(1, 64994385), (3, 21664795), (5, 12998877), (15, 4332959), (37, 1756605), (111, 585535), (181, 359085), (185, 351321), (543, 119695), (555, 117107), (647, 100455), (905, 71817), (1941, 33485), (2715, 23939), (3235, 20091), (6697, 9705)]