66798640

素因数分解:

$2^4\times 5^1\times {\mathrm{834983}}^1$

素因数の和:834996

約数の個数: 20

約数和(自身を含む): 155307024

約数和(自身を除く): 88508384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 834983, 1669966, 3339932, 4174915, 6679864, 8349830, 13359728, 16699660, 33399320, 66798640]

約数ペア:

[(1, 66798640), (2, 33399320), (4, 16699660), (5, 13359728), (8, 8349830), (10, 6679864), (16, 4174915), (20, 3339932), (40, 1669966), (80, 834983)]