2169895

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 3386880

約数和(自身を除く): 1216985

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 251, 455, 665, 1235, 1255, 1729, 1757, 3263, 4769, 8645, 8785, 16315, 22841, 23845, 33383, 61997, 114205, 166915, 309985, 433979, 2169895]

約数ペア:

[(1, 2169895), (5, 433979), (7, 309985), (13, 166915), (19, 114205), (35, 61997), (65, 33383), (91, 23845), (95, 22841), (133, 16315), (247, 8785), (251, 8645), (455, 4769), (665, 3263), (1235, 1757), (1255, 1729)]