80864680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155509}}^1$

素因数の和:155533

約数の個数: 32

約数和(自身を含む): 195942600

約数和(自身を除く): 115077920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 155509, 311018, 622036, 777545, 1244072, 1555090, 2021617, 3110180, 4043234, 6220360, 8086468, 10108085, 16172936, 20216170, 40432340, 80864680]

約数ペア:

[(1, 80864680), (2, 40432340), (4, 20216170), (5, 16172936), (8, 10108085), (10, 8086468), (13, 6220360), (20, 4043234), (26, 3110180), (40, 2021617), (52, 1555090), (65, 1244072), (104, 777545), (130, 622036), (260, 311018), (520, 155509)]