21620480

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:174

約数の個数: 144

約数和(自身を含む): 62791680

約数和(自身を除く): 41171200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 127, 128, 133, 140, 152, 160, 190, 224, 254, 256, 266, 280, 304, 320, 380, 448, 508, 532, 560, 608, 635, 640, 665, 760, 889, 896, 1016, 1064, 1120, 1216, 1270, 1280, 1330, 1520, 1778, 1792, 2032, 2128, 2240, 2413, 2432, 2540, 2660, 3040, 3556, 4064, 4256, 4445, 4480, 4826, 4864, 5080, 5320, 6080, 7112, 8128, 8512, 8890, 8960, 9652, 10160, 10640, 12065, 12160, 14224, 16256, 16891, 17024, 17780, 19304, 20320, 21280, 24130, 24320, 28448, 32512, 33782, 34048, 35560, 38608, 40640, 42560, 48260, 56896, 67564, 71120, 77216, 81280, 84455, 85120, 96520, 113792, 135128, 142240, 154432, 162560, 168910, 170240, 193040, 227584, 270256, 284480, 308864, 337820, 386080, 540512, 568960, 617728, 675640, 772160, 1081024, 1137920, 1351280, 1544320, 2162048, 2702560, 3088640, 4324096, 5405120, 10810240, 21620480]

約数ペア:

[(1, 21620480), (2, 10810240), (4, 5405120), (5, 4324096), (7, 3088640), (8, 2702560), (10, 2162048), (14, 1544320), (16, 1351280), (19, 1137920), (20, 1081024), (28, 772160), (32, 675640), (35, 617728), (38, 568960), (40, 540512), (56, 386080), (64, 337820), (70, 308864), (76, 284480), (80, 270256), (95, 227584), (112, 193040), (127, 170240), (128, 168910), (133, 162560), (140, 154432), (152, 142240), (160, 135128), (190, 113792), (224, 96520), (254, 85120), (256, 84455), (266, 81280), (280, 77216), (304, 71120), (320, 67564), (380, 56896), (448, 48260), (508, 42560), (532, 40640), (560, 38608), (608, 35560), (635, 34048), (640, 33782), (665, 32512), (760, 28448), (889, 24320), (896, 24130), (1016, 21280), (1064, 20320), (1120, 19304), (1216, 17780), (1270, 17024), (1280, 16891), (1330, 16256), (1520, 14224), (1778, 12160), (1792, 12065), (2032, 10640), (2128, 10160), (2240, 9652), (2413, 8960), (2432, 8890), (2540, 8512), (2660, 8128), (3040, 7112), (3556, 6080), (4064, 5320), (4256, 5080), (4445, 4864), (4480, 4826)]