28945575

素因数分解:

$3^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{1249}}^1$

素因数の和:1368

約数の個数: 36

約数和(自身を含む): 52390000

約数和(自身を除く): 23444425

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 103, 225, 309, 515, 927, 1249, 1545, 2575, 3747, 4635, 6245, 7725, 11241, 18735, 23175, 31225, 56205, 93675, 128647, 281025, 385941, 643235, 1157823, 1929705, 3216175, 5789115, 9648525, 28945575]

約数ペア:

[(1, 28945575), (3, 9648525), (5, 5789115), (9, 3216175), (15, 1929705), (25, 1157823), (45, 643235), (75, 385941), (103, 281025), (225, 128647), (309, 93675), (515, 56205), (927, 31225), (1249, 23175), (1545, 18735), (2575, 11241), (3747, 7725), (4635, 6245)]