6781385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^2$

素因数の和:90

約数の個数: 36

約数和(自身を含む): 9825228

約数和(自身を除く): 3043843

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 289, 323, 361, 1105, 1235, 1445, 1615, 1805, 3757, 4199, 4693, 5491, 6137, 18785, 20995, 23465, 27455, 30685, 71383, 79781, 104329, 356915, 398905, 521645, 1356277, 6781385]

約数ペア:

[(1, 6781385), (5, 1356277), (13, 521645), (17, 398905), (19, 356915), (65, 104329), (85, 79781), (95, 71383), (221, 30685), (247, 27455), (289, 23465), (323, 20995), (361, 18785), (1105, 6137), (1235, 5491), (1445, 4693), (1615, 4199), (1805, 3757)]