20830990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{659}}^1$

素因数の和:804

約数の個数: 32

約数和(自身を含む): 39204000

約数和(自身を除く): 18373010

約数列:

[1, 2, 5, 10, 29, 58, 109, 145, 218, 290, 545, 659, 1090, 1318, 3161, 3295, 6322, 6590, 15805, 19111, 31610, 38222, 71831, 95555, 143662, 191110, 359155, 718310, 2083099, 4166198, 10415495, 20830990]

約数ペア:

[(1, 20830990), (2, 10415495), (5, 4166198), (10, 2083099), (29, 718310), (58, 359155), (109, 191110), (145, 143662), (218, 95555), (290, 71831), (545, 38222), (659, 31610), (1090, 19111), (1318, 15805), (3161, 6590), (3295, 6322)]