321307225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{3137}}^1$

素因数の和:3405

約数の個数: 24

約数和(自身を含む): 423742968

約数和(自身を除く): 102435743

約数列:

[1, 5, 17, 25, 85, 241, 425, 1205, 3137, 4097, 6025, 15685, 20485, 53329, 78425, 102425, 266645, 756017, 1333225, 3780085, 12852289, 18900425, 64261445, 321307225]

約数ペア:

[(1, 321307225), (5, 64261445), (17, 18900425), (25, 12852289), (85, 3780085), (241, 1333225), (425, 756017), (1205, 266645), (3137, 102425), (4097, 78425), (6025, 53329), (15685, 20485)]