20131578025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{347}}^1\times {\mathrm{1303}}^1$

素因数の和:1810

約数の個数: 48

約数和(自身を含む): 27178510464

約数和(自身を除く): 7046932439

約数列:

[1, 5, 13, 25, 65, 137, 325, 347, 685, 1303, 1735, 1781, 3425, 4511, 6515, 8675, 8905, 16939, 22555, 32575, 44525, 47539, 84695, 112775, 178511, 237695, 423475, 452141, 618007, 892555, 1188475, 2260705, 2320643, 3090035, 4462775, 5877833, 11303525, 11603215, 15450175, 29389165, 58016075, 61943317, 146945825, 309716585, 805263121, 1548582925, 4026315605, 20131578025]

約数ペア:

[(1, 20131578025), (5, 4026315605), (13, 1548582925), (25, 805263121), (65, 309716585), (137, 146945825), (325, 61943317), (347, 58016075), (685, 29389165), (1303, 15450175), (1735, 11603215), (1781, 11303525), (3425, 5877833), (4511, 4462775), (6515, 3090035), (8675, 2320643), (8905, 2260705), (16939, 1188475), (22555, 892555), (32575, 618007), (44525, 452141), (47539, 423475), (84695, 237695), (112775, 178511)]