20189965820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1713919}}^1$

素因数の和:1713978

約数の個数: 48

約数和(自身を含む): 46070169600

約数和(自身を除く): 25880203780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5890, 11780, 1713919, 3427838, 6855676, 8569595, 17139190, 32564461, 34278380, 53131489, 65128922, 106262978, 130257844, 162822305, 212525956, 265657445, 325644610, 531314890, 651289220, 1009498291, 1062629780, 2018996582, 4037993164, 5047491455, 10094982910, 20189965820]

約数ペア:

[(1, 20189965820), (2, 10094982910), (4, 5047491455), (5, 4037993164), (10, 2018996582), (19, 1062629780), (20, 1009498291), (31, 651289220), (38, 531314890), (62, 325644610), (76, 265657445), (95, 212525956), (124, 162822305), (155, 130257844), (190, 106262978), (310, 65128922), (380, 53131489), (589, 34278380), (620, 32564461), (1178, 17139190), (2356, 8569595), (2945, 6855676), (5890, 3427838), (11780, 1713919)]