243324680

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{12491}}^1$

素因数の和:12989

約数の個数: 32

約数和(自身を含む): 548648640

約数和(自身を除く): 305323960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3896, 4870, 9740, 12491, 19480, 24982, 49964, 62455, 99928, 124910, 249820, 499640, 6083117, 12166234, 24332468, 30415585, 48664936, 60831170, 121662340, 243324680]

約数ペア:

[(1, 243324680), (2, 121662340), (4, 60831170), (5, 48664936), (8, 30415585), (10, 24332468), (20, 12166234), (40, 6083117), (487, 499640), (974, 249820), (1948, 124910), (2435, 99928), (3896, 62455), (4870, 49964), (9740, 24982), (12491, 19480)]