4089995

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 6168960

約数和(自身を除く): 2078965

約数列:

[1, 5, 7, 13, 35, 65, 89, 91, 101, 445, 455, 505, 623, 707, 1157, 1313, 3115, 3535, 5785, 6565, 8099, 8989, 9191, 40495, 44945, 45955, 62923, 116857, 314615, 584285, 817999, 4089995]

約数ペア:

[(1, 4089995), (5, 817999), (7, 584285), (13, 314615), (35, 116857), (65, 62923), (89, 45955), (91, 44945), (101, 40495), (445, 9191), (455, 8989), (505, 8099), (623, 6565), (707, 5785), (1157, 3535), (1313, 3115)]