860405

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:117

約数の個数: 32

約数和(自身を含む): 1333248

約数和(自身を除く): 472843

約数列:

[1, 5, 7, 13, 31, 35, 61, 65, 91, 155, 217, 305, 403, 427, 455, 793, 1085, 1891, 2015, 2135, 2821, 3965, 5551, 9455, 13237, 14105, 24583, 27755, 66185, 122915, 172081, 860405]

約数ペア:

[(1, 860405), (5, 172081), (7, 122915), (13, 66185), (31, 27755), (35, 24583), (61, 14105), (65, 13237), (91, 9455), (155, 5551), (217, 3965), (305, 2821), (403, 2135), (427, 2015), (455, 1891), (793, 1085)]