420872145

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^3\times {\mathrm{5711}}^1$

素因数の和:5770

約数の個数: 32

約数和(自身を含む): 715599360

約数和(自身を除く): 294727215

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 867, 1445, 4335, 4913, 5711, 14739, 17133, 24565, 28555, 73695, 85665, 97087, 291261, 485435, 1456305, 1650479, 4951437, 8252395, 24757185, 28058143, 84174429, 140290715, 420872145]

約数ペア:

[(1, 420872145), (3, 140290715), (5, 84174429), (15, 28058143), (17, 24757185), (51, 8252395), (85, 4951437), (255, 1650479), (289, 1456305), (867, 485435), (1445, 291261), (4335, 97087), (4913, 85665), (5711, 73695), (14739, 28555), (17133, 24565)]