20163786640

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1456921}}^1$

素因数の和:1457107

約数の個数: 40

約数和(自身を含む): 47151823608

約数和(自身を除く): 26988036968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1730, 2768, 3460, 6920, 13840, 1456921, 2913842, 5827684, 7284605, 11655368, 14569210, 23310736, 29138420, 58276840, 116553680, 252047333, 504094666, 1008189332, 1260236665, 2016378664, 2520473330, 4032757328, 5040946660, 10081893320, 20163786640]

約数ペア:

[(1, 20163786640), (2, 10081893320), (4, 5040946660), (5, 4032757328), (8, 2520473330), (10, 2016378664), (16, 1260236665), (20, 1008189332), (40, 504094666), (80, 252047333), (173, 116553680), (346, 58276840), (692, 29138420), (865, 23310736), (1384, 14569210), (1730, 11655368), (2768, 7284605), (3460, 5827684), (6920, 2913842), (13840, 1456921)]