1138840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 2604960

約数和(自身を除く): 1466120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 401, 568, 710, 802, 1420, 1604, 2005, 2840, 3208, 4010, 8020, 16040, 28471, 56942, 113884, 142355, 227768, 284710, 569420, 1138840]

約数ペア:

[(1, 1138840), (2, 569420), (4, 284710), (5, 227768), (8, 142355), (10, 113884), (20, 56942), (40, 28471), (71, 16040), (142, 8020), (284, 4010), (355, 3208), (401, 2840), (568, 2005), (710, 1604), (802, 1420)]