203416915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 270418176

約数和(自身を除く): 67001261

約数列:

[1, 5, 13, 53, 65, 137, 265, 431, 685, 689, 1781, 2155, 3445, 5603, 7261, 8905, 22843, 28015, 36305, 59047, 94393, 114215, 295235, 296959, 471965, 767611, 1484795, 3129491, 3838055, 15647455, 40683383, 203416915]

約数ペア:

[(1, 203416915), (5, 40683383), (13, 15647455), (53, 3838055), (65, 3129491), (137, 1484795), (265, 767611), (431, 471965), (685, 296959), (689, 295235), (1781, 114215), (2155, 94393), (3445, 59047), (5603, 36305), (7261, 28015), (8905, 22843)]