839786980

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{242713}}^1$

素因数の和:242895

約数の個数: 24

約数和(自身を含む): 1773753912

約数和(自身を除く): 933966932

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 242713, 485426, 970852, 1213565, 2427130, 4854260, 41989349, 83978698, 167957396, 209946745, 419893490, 839786980]

約数ペア:

[(1, 839786980), (2, 419893490), (4, 209946745), (5, 167957396), (10, 83978698), (20, 41989349), (173, 4854260), (346, 2427130), (692, 1213565), (865, 970852), (1730, 485426), (3460, 242713)]