201320405

素因数分解:

$5^1\times {\mathrm{11}}^3\times {\mathrm{13}}^2\times {\mathrm{179}}^1$

素因数の和:243

約数の個数: 48

約数和(自身を含む): 289344960

約数和(自身を除く): 88024555

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 169, 179, 605, 715, 845, 895, 1331, 1573, 1859, 1969, 2327, 6655, 7865, 9295, 9845, 11635, 17303, 20449, 21659, 25597, 30251, 86515, 102245, 108295, 127985, 151255, 224939, 238249, 281567, 332761, 1124695, 1191245, 1407835, 1663805, 3097237, 3660371, 15486185, 18301855, 40264081, 201320405]

約数ペア:

[(1, 201320405), (5, 40264081), (11, 18301855), (13, 15486185), (55, 3660371), (65, 3097237), (121, 1663805), (143, 1407835), (169, 1191245), (179, 1124695), (605, 332761), (715, 281567), (845, 238249), (895, 224939), (1331, 151255), (1573, 127985), (1859, 108295), (1969, 102245), (2327, 86515), (6655, 30251), (7865, 25597), (9295, 21659), (9845, 20449), (11635, 17303)]