1398425

素因数分解:

$5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:209

約数の個数: 24

約数和(自身を含む): 2029632

約数和(自身を除く): 631207

約数列:

[1, 5, 7, 25, 35, 61, 131, 175, 305, 427, 655, 917, 1525, 2135, 3275, 4585, 7991, 10675, 22925, 39955, 55937, 199775, 279685, 1398425]

約数ペア:

[(1, 1398425), (5, 279685), (7, 199775), (25, 55937), (35, 39955), (61, 22925), (131, 10675), (175, 7991), (305, 4585), (427, 3275), (655, 2135), (917, 1525)]