7881445

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 11337984

約数和(自身を除く): 3456539

約数列:

[1, 5, 11, 13, 55, 65, 73, 143, 151, 365, 715, 755, 803, 949, 1661, 1963, 4015, 4745, 8305, 9815, 10439, 11023, 21593, 52195, 55115, 107965, 121253, 143299, 606265, 716495, 1576289, 7881445]

約数ペア:

[(1, 7881445), (5, 1576289), (11, 716495), (13, 606265), (55, 143299), (65, 121253), (73, 107965), (143, 55115), (151, 52195), (365, 21593), (715, 11023), (755, 10439), (803, 9815), (949, 8305), (1661, 4745), (1963, 4015)]