163440812

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{20879}}^1$

素因数の和:21005

約数の個数: 24

約数和(自身を含む): 304012800

約数和(自身を除く): 140571988

約数列:

[1, 2, 4, 19, 38, 76, 103, 206, 412, 1957, 3914, 7828, 20879, 41758, 83516, 396701, 793402, 1586804, 2150537, 4301074, 8602148, 40860203, 81720406, 163440812]

約数ペア:

[(1, 163440812), (2, 81720406), (4, 40860203), (19, 8602148), (38, 4301074), (76, 2150537), (103, 1586804), (206, 793402), (412, 396701), (1957, 83516), (3914, 41758), (7828, 20879)]