127779860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491461}}^1$

素因数の和:491483

約数の個数: 24

約数和(自身を含む): 288979656

約数和(自身を除く): 161199796

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 491461, 982922, 1965844, 2457305, 4914610, 6388993, 9829220, 12777986, 25555972, 31944965, 63889930, 127779860]

約数ペア:

[(1, 127779860), (2, 63889930), (4, 31944965), (5, 25555972), (10, 12777986), (13, 9829220), (20, 6388993), (26, 4914610), (52, 2457305), (65, 1965844), (130, 982922), (260, 491461)]