201678640

素因数分解:

$2^4\times 5^1\times {\mathrm{2520983}}^1$

素因数の和:2520996

約数の個数: 20

約数和(自身を含む): 468903024

約数和(自身を除く): 267224384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2520983, 5041966, 10083932, 12604915, 20167864, 25209830, 40335728, 50419660, 100839320, 201678640]

約数ペア:

[(1, 201678640), (2, 100839320), (4, 50419660), (5, 40335728), (8, 25209830), (10, 20167864), (16, 12604915), (20, 10083932), (40, 5041966), (80, 2520983)]