18344680

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5153}}^1$

素因数の和:5253

約数の個数: 32

約数和(自身を含む): 41747400

約数和(自身を除く): 23402720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 5153, 10306, 20612, 25765, 41224, 51530, 103060, 206120, 458617, 917234, 1834468, 2293085, 3668936, 4586170, 9172340, 18344680]

約数ペア:

[(1, 18344680), (2, 9172340), (4, 4586170), (5, 3668936), (8, 2293085), (10, 1834468), (20, 917234), (40, 458617), (89, 206120), (178, 103060), (356, 51530), (445, 41224), (712, 25765), (890, 20612), (1780, 10306), (3560, 5153)]