78980005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{3907}}^1$

素因数の和:4236

約数の個数: 16

約数和(自身を含む): 102420864

約数和(自身を除く): 23440859

約数列:

[1, 5, 13, 65, 311, 1555, 3907, 4043, 19535, 20215, 50791, 253955, 1215077, 6075385, 15796001, 78980005]

約数ペア:

[(1, 78980005), (5, 15796001), (13, 6075385), (65, 1215077), (311, 253955), (1555, 50791), (3907, 20215), (4043, 19535)]