81370180

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{55733}}^1$

素因数の和:55815

約数の個数: 24

約数和(自身を含む): 173221272

約数和(自身を除く): 91851092

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 55733, 111466, 222932, 278665, 557330, 1114660, 4068509, 8137018, 16274036, 20342545, 40685090, 81370180]

約数ペア:

[(1, 81370180), (2, 40685090), (4, 20342545), (5, 16274036), (10, 8137018), (20, 4068509), (73, 1114660), (146, 557330), (292, 278665), (365, 222932), (730, 111466), (1460, 55733)]