213915325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{15307}}^1$

素因数の和:15373

約数の個数: 24

約数和(自身を含む): 292321568

約数和(自身を除く): 78406243

約数列:

[1, 5, 13, 25, 43, 65, 215, 325, 559, 1075, 2795, 13975, 15307, 76535, 198991, 382675, 658201, 994955, 3291005, 4974775, 8556613, 16455025, 42783065, 213915325]

約数ペア:

[(1, 213915325), (5, 42783065), (13, 16455025), (25, 8556613), (43, 4974775), (65, 3291005), (215, 994955), (325, 658201), (559, 382675), (1075, 198991), (2795, 76535), (13975, 15307)]