7870915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{419}}^1$

素因数の和:471

約数の個数: 24

約数和(自身を含む): 10830960

約数和(自身を除く): 2960045

約数列:

[1, 5, 13, 17, 65, 85, 221, 289, 419, 1105, 1445, 2095, 3757, 5447, 7123, 18785, 27235, 35615, 92599, 121091, 462995, 605455, 1574183, 7870915]

約数ペア:

[(1, 7870915), (5, 1574183), (13, 605455), (17, 462995), (65, 121091), (85, 92599), (221, 35615), (289, 27235), (419, 18785), (1105, 7123), (1445, 5447), (2095, 3757)]