78420455

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{1753}}^1$

素因数の和:2170

約数の個数: 16

約数和(自身を含む): 98504640

約数和(自身を除く): 20084185

約数列:

[1, 5, 23, 115, 389, 1753, 1945, 8765, 8947, 40319, 44735, 201595, 681917, 3409585, 15684091, 78420455]

約数ペア:

[(1, 78420455), (5, 15684091), (23, 3409585), (115, 681917), (389, 201595), (1753, 44735), (1945, 40319), (8765, 8947)]