218023975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{15601}}^1$

素因数の和:15667

約数の個数: 24

約数和(自身を含む): 297935792

約数和(自身を除く): 79911817

約数列:

[1, 5, 13, 25, 43, 65, 215, 325, 559, 1075, 2795, 13975, 15601, 78005, 202813, 390025, 670843, 1014065, 3354215, 5070325, 8720959, 16771075, 43604795, 218023975]

約数ペア:

[(1, 218023975), (5, 43604795), (13, 16771075), (25, 8720959), (43, 5070325), (65, 3354215), (215, 1014065), (325, 670843), (559, 390025), (1075, 202813), (2795, 78005), (13975, 15601)]