18448940680

素因数分解:

$2^3\times 5^1\times {\mathrm{2371}}^1\times {\mathrm{194527}}^1$

素因数の和:196909

約数の個数: 32

約数和(自身を含む): 41527837440

約数和(自身を除く): 23078896760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2371, 4742, 9484, 11855, 18968, 23710, 47420, 94840, 194527, 389054, 778108, 972635, 1556216, 1945270, 3890540, 7781080, 461223517, 922447034, 1844894068, 2306117585, 3689788136, 4612235170, 9224470340, 18448940680]

約数ペア:

[(1, 18448940680), (2, 9224470340), (4, 4612235170), (5, 3689788136), (8, 2306117585), (10, 1844894068), (20, 922447034), (40, 461223517), (2371, 7781080), (4742, 3890540), (9484, 1945270), (11855, 1556216), (18968, 972635), (23710, 778108), (47420, 389054), (94840, 194527)]