51281285

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1583}}^1$

素因数の和:1649

約数の個数: 32

約数和(自身を含む): 72990720

約数和(自身を除く): 21709435

約数列:

[1, 5, 11, 19, 31, 55, 95, 155, 209, 341, 589, 1045, 1583, 1705, 2945, 6479, 7915, 17413, 30077, 32395, 49073, 87065, 150385, 245365, 330847, 539803, 932387, 1654235, 2699015, 4661935, 10256257, 51281285]

約数ペア:

[(1, 51281285), (5, 10256257), (11, 4661935), (19, 2699015), (31, 1654235), (55, 932387), (95, 539803), (155, 330847), (209, 245365), (341, 150385), (589, 87065), (1045, 49073), (1583, 32395), (1705, 30077), (2945, 17413), (6479, 7915)]