128584515

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{1721}}^1$

素因数の和:2039

約数の個数: 32

約数和(自身を含む): 218707776

約数和(自身を除く): 90123261

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 293, 879, 1465, 1721, 4395, 4981, 5163, 8605, 14943, 24905, 25815, 29257, 74715, 87771, 146285, 438855, 504253, 1512759, 2521265, 7563795, 8572301, 25716903, 42861505, 128584515]

約数ペア:

[(1, 128584515), (3, 42861505), (5, 25716903), (15, 8572301), (17, 7563795), (51, 2521265), (85, 1512759), (255, 504253), (293, 438855), (879, 146285), (1465, 87771), (1721, 74715), (4395, 29257), (4981, 25815), (5163, 24905), (8605, 14943)]