28560825

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{5519}}^1$

素因数の和:5558

約数の個数: 36

約数和(自身を含む): 53389440

約数和(自身を除く): 24828615

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 5175, 5519, 16557, 27595, 49671, 82785, 126937, 137975, 248355, 380811, 413925, 634685, 1142433, 1241775, 1904055, 3173425, 5712165, 9520275, 28560825]

約数ペア:

[(1, 28560825), (3, 9520275), (5, 5712165), (9, 3173425), (15, 1904055), (23, 1241775), (25, 1142433), (45, 634685), (69, 413925), (75, 380811), (115, 248355), (207, 137975), (225, 126937), (345, 82785), (575, 49671), (1035, 27595), (1725, 16557), (5175, 5519)]