279969225

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1489}}^1$

素因数の和:1634

約数の個数: 48

約数和(自身を含む): 487766400

約数和(自身を除く): 207797175

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 109, 115, 327, 345, 545, 575, 1489, 1635, 1725, 2507, 2725, 4467, 7445, 7521, 8175, 12535, 22335, 34247, 37225, 37605, 62675, 102741, 111675, 162301, 171235, 188025, 486903, 513705, 811505, 856175, 2434515, 2568525, 3732923, 4057525, 11198769, 12172575, 18664615, 55993845, 93323075, 279969225]

約数ペア:

[(1, 279969225), (3, 93323075), (5, 55993845), (15, 18664615), (23, 12172575), (25, 11198769), (69, 4057525), (75, 3732923), (109, 2568525), (115, 2434515), (327, 856175), (345, 811505), (545, 513705), (575, 486903), (1489, 188025), (1635, 171235), (1725, 162301), (2507, 111675), (2725, 102741), (4467, 62675), (7445, 37605), (7521, 37225), (8175, 34247), (12535, 22335)]