8320715

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:303

約数の個数: 24

約数和(自身を含む): 11111760

約数和(自身を除く): 2791045

約数列:

[1, 5, 13, 43, 65, 169, 215, 229, 559, 845, 1145, 2795, 2977, 7267, 9847, 14885, 36335, 38701, 49235, 128011, 193505, 640055, 1664143, 8320715]

約数ペア:

[(1, 8320715), (5, 1664143), (13, 640055), (43, 193505), (65, 128011), (169, 49235), (215, 38701), (229, 36335), (559, 14885), (845, 9847), (1145, 7267), (2795, 2977)]