80940190

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{9907}}^1$

素因数の和:9976

約数の個数: 32

約数和(自身を含む): 156942720

約数和(自身を除く): 76002530

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 190, 215, 430, 817, 1634, 4085, 8170, 9907, 19814, 49535, 99070, 188233, 376466, 426001, 852002, 941165, 1882330, 2130005, 4260010, 8094019, 16188038, 40470095, 80940190]

約数ペア:

[(1, 80940190), (2, 40470095), (5, 16188038), (10, 8094019), (19, 4260010), (38, 2130005), (43, 1882330), (86, 941165), (95, 852002), (190, 426001), (215, 376466), (430, 188233), (817, 99070), (1634, 49535), (4085, 19814), (8170, 9907)]