79820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1$

素因数の和:329

約数の個数: 24

約数和(自身を含む): 181104

約数和(自身を除く): 101284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 307, 614, 1228, 1535, 3070, 3991, 6140, 7982, 15964, 19955, 39910, 79820]

約数ペア:

[(1, 79820), (2, 39910), (4, 19955), (5, 15964), (10, 7982), (13, 6140), (20, 3991), (26, 3070), (52, 1535), (65, 1228), (130, 614), (260, 307)]