71905405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 109670400

約数和(自身を除く): 37764995

約数列:

[1, 5, 11, 13, 19, 55, 65, 67, 79, 95, 143, 209, 247, 335, 395, 715, 737, 869, 871, 1027, 1045, 1235, 1273, 1501, 2717, 3685, 4345, 4355, 5135, 5293, 6365, 7505, 9581, 11297, 13585, 14003, 16511, 16549, 19513, 26465, 47905, 56485, 58223, 68809, 70015, 82555, 82745, 97565, 100567, 182039, 214643, 291115, 344045, 502835, 756899, 910195, 1073215, 1106237, 1307371, 3784495, 5531185, 6536855, 14381081, 71905405]

約数ペア:

[(1, 71905405), (5, 14381081), (11, 6536855), (13, 5531185), (19, 3784495), (55, 1307371), (65, 1106237), (67, 1073215), (79, 910195), (95, 756899), (143, 502835), (209, 344045), (247, 291115), (335, 214643), (395, 182039), (715, 100567), (737, 97565), (869, 82745), (871, 82555), (1027, 70015), (1045, 68809), (1235, 58223), (1273, 56485), (1501, 47905), (2717, 26465), (3685, 19513), (4345, 16549), (4355, 16511), (5135, 14003), (5293, 13585), (6365, 11297), (7505, 9581)]