20804784

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{433}}^1$

素因数の和:475

約数の個数: 160

約数和(自身を含む): 72328704

約数和(自身を除く): 51523920

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 13, 14, 16, 21, 22, 24, 26, 28, 33, 39, 42, 44, 48, 52, 56, 66, 77, 78, 84, 88, 91, 104, 112, 132, 143, 154, 156, 168, 176, 182, 208, 231, 264, 273, 286, 308, 312, 336, 364, 429, 433, 462, 528, 546, 572, 616, 624, 728, 858, 866, 924, 1001, 1092, 1144, 1232, 1299, 1456, 1716, 1732, 1848, 2002, 2184, 2288, 2598, 3003, 3031, 3432, 3464, 3696, 4004, 4368, 4763, 5196, 5629, 6006, 6062, 6864, 6928, 8008, 9093, 9526, 10392, 11258, 12012, 12124, 14289, 16016, 16887, 18186, 19052, 20784, 22516, 24024, 24248, 28578, 33341, 33774, 36372, 38104, 39403, 45032, 48048, 48496, 57156, 61919, 66682, 67548, 72744, 76208, 78806, 90064, 100023, 114312, 118209, 123838, 133364, 135096, 145488, 157612, 185757, 200046, 228624, 236418, 247676, 266728, 270192, 315224, 371514, 400092, 433433, 472836, 495352, 533456, 630448, 743028, 800184, 866866, 945672, 990704, 1300299, 1486056, 1600368, 1733732, 1891344, 2600598, 2972112, 3467464, 5201196, 6934928, 10402392, 20804784]

約数ペア:

[(1, 20804784), (2, 10402392), (3, 6934928), (4, 5201196), (6, 3467464), (7, 2972112), (8, 2600598), (11, 1891344), (12, 1733732), (13, 1600368), (14, 1486056), (16, 1300299), (21, 990704), (22, 945672), (24, 866866), (26, 800184), (28, 743028), (33, 630448), (39, 533456), (42, 495352), (44, 472836), (48, 433433), (52, 400092), (56, 371514), (66, 315224), (77, 270192), (78, 266728), (84, 247676), (88, 236418), (91, 228624), (104, 200046), (112, 185757), (132, 157612), (143, 145488), (154, 135096), (156, 133364), (168, 123838), (176, 118209), (182, 114312), (208, 100023), (231, 90064), (264, 78806), (273, 76208), (286, 72744), (308, 67548), (312, 66682), (336, 61919), (364, 57156), (429, 48496), (433, 48048), (462, 45032), (528, 39403), (546, 38104), (572, 36372), (616, 33774), (624, 33341), (728, 28578), (858, 24248), (866, 24024), (924, 22516), (1001, 20784), (1092, 19052), (1144, 18186), (1232, 16887), (1299, 16016), (1456, 14289), (1716, 12124), (1732, 12012), (1848, 11258), (2002, 10392), (2184, 9526), (2288, 9093), (2598, 8008), (3003, 6928), (3031, 6864), (3432, 6062), (3464, 6006), (3696, 5629), (4004, 5196), (4368, 4763)]