1279944215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 1817786880

約数和(自身を除く): 537842665

約数列:

[1, 5, 11, 19, 55, 67, 95, 101, 181, 209, 335, 505, 737, 905, 1045, 1111, 1273, 1919, 1991, 3439, 3685, 5555, 6365, 6767, 9595, 9955, 12127, 14003, 17195, 18281, 21109, 33835, 37829, 60635, 70015, 74437, 91405, 105545, 128573, 133397, 189145, 201091, 230413, 347339, 372185, 642865, 666985, 1005455, 1152065, 1224827, 1414303, 1736695, 2534543, 3820729, 6124135, 7071515, 12672715, 13473097, 19103645, 23271713, 67365485, 116358565, 255988843, 1279944215]

約数ペア:

[(1, 1279944215), (5, 255988843), (11, 116358565), (19, 67365485), (55, 23271713), (67, 19103645), (95, 13473097), (101, 12672715), (181, 7071515), (209, 6124135), (335, 3820729), (505, 2534543), (737, 1736695), (905, 1414303), (1045, 1224827), (1111, 1152065), (1273, 1005455), (1919, 666985), (1991, 642865), (3439, 372185), (3685, 347339), (5555, 230413), (6365, 201091), (6767, 189145), (9595, 133397), (9955, 128573), (12127, 105545), (14003, 91405), (17195, 74437), (18281, 70015), (21109, 60635), (33835, 37829)]