20397330184

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{3967}}^1$

素因数の和:4499

約数の個数: 128

約数和(自身を含む): 50602475520

約数和(自身を除く): 30205145336

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 34, 44, 56, 68, 77, 88, 119, 136, 154, 187, 238, 308, 374, 476, 491, 616, 748, 952, 982, 1309, 1496, 1964, 2618, 3437, 3928, 3967, 5236, 5401, 6874, 7934, 8347, 10472, 10802, 13748, 15868, 16694, 21604, 27496, 27769, 31736, 33388, 37807, 43208, 43637, 55538, 58429, 66776, 67439, 75614, 87274, 91817, 111076, 116858, 134878, 151228, 174548, 183634, 222152, 233716, 269756, 302456, 305459, 349096, 367268, 467432, 472073, 539512, 610918, 642719, 734536, 741829, 944146, 1221836, 1285438, 1483658, 1888292, 1947797, 2443672, 2570876, 2967316, 3776584, 3895594, 5141752, 5192803, 5934632, 7791188, 10385606, 13634579, 15582376, 20771212, 21425767, 27269158, 33112549, 41542424, 42851534, 54538316, 66225098, 85703068, 109076632, 132450196, 149980369, 171406136, 231787843, 264900392, 299960738, 364238039, 463575686, 599921476, 728476078, 927151372, 1199842952, 1456952156, 1854302744, 2549666273, 2913904312, 5099332546, 10198665092, 20397330184]

約数ペア:

[(1, 20397330184), (2, 10198665092), (4, 5099332546), (7, 2913904312), (8, 2549666273), (11, 1854302744), (14, 1456952156), (17, 1199842952), (22, 927151372), (28, 728476078), (34, 599921476), (44, 463575686), (56, 364238039), (68, 299960738), (77, 264900392), (88, 231787843), (119, 171406136), (136, 149980369), (154, 132450196), (187, 109076632), (238, 85703068), (308, 66225098), (374, 54538316), (476, 42851534), (491, 41542424), (616, 33112549), (748, 27269158), (952, 21425767), (982, 20771212), (1309, 15582376), (1496, 13634579), (1964, 10385606), (2618, 7791188), (3437, 5934632), (3928, 5192803), (3967, 5141752), (5236, 3895594), (5401, 3776584), (6874, 2967316), (7934, 2570876), (8347, 2443672), (10472, 1947797), (10802, 1888292), (13748, 1483658), (15868, 1285438), (16694, 1221836), (21604, 944146), (27496, 741829), (27769, 734536), (31736, 642719), (33388, 610918), (37807, 539512), (43208, 472073), (43637, 467432), (55538, 367268), (58429, 349096), (66776, 305459), (67439, 302456), (75614, 269756), (87274, 233716), (91817, 222152), (111076, 183634), (116858, 174548), (134878, 151228)]