51380480

素因数分解:

$2^8\times 5^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 124393752

約数和(自身を除く): 73013272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 137, 160, 256, 274, 293, 320, 548, 586, 640, 685, 1096, 1172, 1280, 1370, 1465, 2192, 2344, 2740, 2930, 4384, 4688, 5480, 5860, 8768, 9376, 10960, 11720, 17536, 18752, 21920, 23440, 35072, 37504, 40141, 43840, 46880, 75008, 80282, 87680, 93760, 160564, 175360, 187520, 200705, 321128, 375040, 401410, 642256, 802820, 1284512, 1605640, 2569024, 3211280, 5138048, 6422560, 10276096, 12845120, 25690240, 51380480]

約数ペア:

[(1, 51380480), (2, 25690240), (4, 12845120), (5, 10276096), (8, 6422560), (10, 5138048), (16, 3211280), (20, 2569024), (32, 1605640), (40, 1284512), (64, 802820), (80, 642256), (128, 401410), (137, 375040), (160, 321128), (256, 200705), (274, 187520), (293, 175360), (320, 160564), (548, 93760), (586, 87680), (640, 80282), (685, 75008), (1096, 46880), (1172, 43840), (1280, 40141), (1370, 37504), (1465, 35072), (2192, 23440), (2344, 21920), (2740, 18752), (2930, 17536), (4384, 11720), (4688, 10960), (5480, 9376), (5860, 8768)]