127551320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{245291}}^1$

素因数の和:245315

約数の個数: 32

約数和(自身を含む): 309067920

約数和(自身を除く): 181516600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 245291, 490582, 981164, 1226455, 1962328, 2452910, 3188783, 4905820, 6377566, 9811640, 12755132, 15943915, 25510264, 31887830, 63775660, 127551320]

約数ペア:

[(1, 127551320), (2, 63775660), (4, 31887830), (5, 25510264), (8, 15943915), (10, 12755132), (13, 9811640), (20, 6377566), (26, 4905820), (40, 3188783), (52, 2452910), (65, 1962328), (104, 1226455), (130, 981164), (260, 490582), (520, 245291)]