388505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:200

約数の個数: 16

約数和(自身を含む): 517440

約数和(自身を除く): 128935

約数列:

[1, 5, 13, 43, 65, 139, 215, 559, 695, 1807, 2795, 5977, 9035, 29885, 77701, 388505]

約数ペア:

[(1, 388505), (5, 77701), (13, 29885), (43, 9035), (65, 5977), (139, 2795), (215, 1807), (559, 695)]