20414225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2731}}^1$

素因数の和:2777

約数の個数: 24

約数和(自身を含む): 28456512

約数和(自身を除く): 8042287

約数列:

[1, 5, 13, 23, 25, 65, 115, 299, 325, 575, 1495, 2731, 7475, 13655, 35503, 62813, 68275, 177515, 314065, 816569, 887575, 1570325, 4082845, 20414225]

約数ペア:

[(1, 20414225), (5, 4082845), (13, 1570325), (23, 887575), (25, 816569), (65, 314065), (115, 177515), (299, 68275), (325, 62813), (575, 35503), (1495, 13655), (2731, 7475)]