123842680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{238159}}^1$

素因数の和:238183

約数の個数: 32

約数和(自身を含む): 300081600

約数和(自身を除く): 176238920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 238159, 476318, 952636, 1190795, 1905272, 2381590, 3096067, 4763180, 6192134, 9526360, 12384268, 15480335, 24768536, 30960670, 61921340, 123842680]

約数ペア:

[(1, 123842680), (2, 61921340), (4, 30960670), (5, 24768536), (8, 15480335), (10, 12384268), (13, 9526360), (20, 6192134), (26, 4763180), (40, 3096067), (52, 2381590), (65, 1905272), (104, 1190795), (130, 952636), (260, 476318), (520, 238159)]