8638279780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{400291}}^1$

素因数の和:400396

約数の個数: 48

約数和(自身を含む): 19771222464

約数和(自身を除く): 11132942684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 130, 166, 260, 332, 415, 830, 1079, 1660, 2158, 4316, 5395, 10790, 21580, 400291, 800582, 1601164, 2001455, 4002910, 5203783, 8005820, 10407566, 20815132, 26018915, 33224153, 52037830, 66448306, 104075660, 132896612, 166120765, 332241530, 431913989, 664483060, 863827978, 1727655956, 2159569945, 4319139890, 8638279780]

約数ペア:

[(1, 8638279780), (2, 4319139890), (4, 2159569945), (5, 1727655956), (10, 863827978), (13, 664483060), (20, 431913989), (26, 332241530), (52, 166120765), (65, 132896612), (83, 104075660), (130, 66448306), (166, 52037830), (260, 33224153), (332, 26018915), (415, 20815132), (830, 10407566), (1079, 8005820), (1660, 5203783), (2158, 4002910), (4316, 2001455), (5395, 1601164), (10790, 800582), (21580, 400291)]