129600920

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{24733}}^1$

素因数の和:24875

約数の個数: 32

約数和(自身を含む): 293839920

約数和(自身を除く): 164239000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 24733, 49466, 98932, 123665, 197864, 247330, 494660, 989320, 3240023, 6480046, 12960092, 16200115, 25920184, 32400230, 64800460, 129600920]

約数ペア:

[(1, 129600920), (2, 64800460), (4, 32400230), (5, 25920184), (8, 16200115), (10, 12960092), (20, 6480046), (40, 3240023), (131, 989320), (262, 494660), (524, 247330), (655, 197864), (1048, 123665), (1310, 98932), (2620, 49466), (5240, 24733)]