40399964

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{83471}}^1$

素因数の和:83497

約数の個数: 18

約数和(自身を含む): 77712432

約数和(自身を除く): 37312468

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 83471, 166942, 333884, 918181, 1836362, 3672724, 10099991, 20199982, 40399964]

約数ペア:

[(1, 40399964), (2, 20199982), (4, 10099991), (11, 3672724), (22, 1836362), (44, 918181), (121, 333884), (242, 166942), (484, 83471)]