54691975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 81557280

約数和(自身を除く): 26865305

約数列:

[1, 5, 13, 17, 19, 25, 65, 85, 95, 221, 247, 323, 325, 425, 475, 521, 1105, 1235, 1615, 2605, 4199, 5525, 6175, 6773, 8075, 8857, 9899, 13025, 20995, 33865, 44285, 49495, 104975, 115141, 128687, 168283, 169325, 221425, 247475, 575705, 643435, 841415, 2187679, 2878525, 3217175, 4207075, 10938395, 54691975]

約数ペア:

[(1, 54691975), (5, 10938395), (13, 4207075), (17, 3217175), (19, 2878525), (25, 2187679), (65, 841415), (85, 643435), (95, 575705), (221, 247475), (247, 221425), (323, 169325), (325, 168283), (425, 128687), (475, 115141), (521, 104975), (1105, 49495), (1235, 44285), (1615, 33865), (2605, 20995), (4199, 13025), (5525, 9899), (6175, 8857), (6773, 8075)]