81369784

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{379}}^1\times {\mathrm{571}}^1$

素因数の和:1003

約数の個数: 32

約数和(自身を含む): 156499200

約数和(自身を除く): 75129416

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 379, 571, 758, 1142, 1516, 2284, 3032, 4568, 17813, 26837, 35626, 53674, 71252, 107348, 142504, 214696, 216409, 432818, 865636, 1731272, 10171223, 20342446, 40684892, 81369784]

約数ペア:

[(1, 81369784), (2, 40684892), (4, 20342446), (8, 10171223), (47, 1731272), (94, 865636), (188, 432818), (376, 216409), (379, 214696), (571, 142504), (758, 107348), (1142, 71252), (1516, 53674), (2284, 35626), (3032, 26837), (4568, 17813)]