81754790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{709}}^1\times {\mathrm{887}}^1$

素因数の和:1616

約数の個数: 32

約数和(自身を含む): 158880960

約数和(自身を除く): 77126170

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 709, 887, 1418, 1774, 3545, 4435, 7090, 8870, 9217, 11531, 18434, 23062, 46085, 57655, 92170, 115310, 628883, 1257766, 3144415, 6288830, 8175479, 16350958, 40877395, 81754790]

約数ペア:

[(1, 81754790), (2, 40877395), (5, 16350958), (10, 8175479), (13, 6288830), (26, 3144415), (65, 1257766), (130, 628883), (709, 115310), (887, 92170), (1418, 57655), (1774, 46085), (3545, 23062), (4435, 18434), (7090, 11531), (8870, 9217)]