28920004

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{1289}}^1$

素因数の和:1443

約数の個数: 24

約数和(自身を含む): 52012800

約数和(自身を除く): 23092796

約数列:

[1, 2, 4, 71, 79, 142, 158, 284, 316, 1289, 2578, 5156, 5609, 11218, 22436, 91519, 101831, 183038, 203662, 366076, 407324, 7230001, 14460002, 28920004]

約数ペア:

[(1, 28920004), (2, 14460002), (4, 7230001), (71, 407324), (79, 366076), (142, 203662), (158, 183038), (284, 101831), (316, 91519), (1289, 22436), (2578, 11218), (5156, 5609)]