218492080

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{15787}}^1$

素因数の和:15973

約数の個数: 40

約数和(自身を含む): 510962832

約数和(自身を除く): 292470752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1730, 2768, 3460, 6920, 13840, 15787, 31574, 63148, 78935, 126296, 157870, 252592, 315740, 631480, 1262960, 2731151, 5462302, 10924604, 13655755, 21849208, 27311510, 43698416, 54623020, 109246040, 218492080]

約数ペア:

[(1, 218492080), (2, 109246040), (4, 54623020), (5, 43698416), (8, 27311510), (10, 21849208), (16, 13655755), (20, 10924604), (40, 5462302), (80, 2731151), (173, 1262960), (346, 631480), (692, 315740), (865, 252592), (1384, 157870), (1730, 126296), (2768, 78935), (3460, 63148), (6920, 31574), (13840, 15787)]