20740804568

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{307}}^1\times {\mathrm{983}}^1$

素因数の和:1389

約数の個数: 96

約数和(自身を含む): 43533262080

約数和(自身を除く): 22792457512

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 121, 142, 242, 284, 307, 484, 568, 614, 781, 968, 983, 1228, 1562, 1966, 2456, 3124, 3377, 3932, 6248, 6754, 7864, 8591, 10813, 13508, 17182, 21626, 21797, 27016, 34364, 37147, 43252, 43594, 68728, 69793, 74294, 86504, 87188, 118943, 139586, 148588, 174376, 237886, 239767, 279172, 297176, 301781, 475772, 479534, 558344, 603562, 767723, 951544, 959068, 1207124, 1535446, 1918136, 2414248, 2637437, 3070892, 3319591, 5274874, 6141784, 6639182, 8444953, 10549748, 13278364, 16889906, 21099496, 21426451, 26556728, 33779812, 36515501, 42852902, 67559624, 73031002, 85705804, 146062004, 171411608, 235690961, 292124008, 471381922, 942763844, 1885527688, 2592600571, 5185201142, 10370402284, 20740804568]

約数ペア:

[(1, 20740804568), (2, 10370402284), (4, 5185201142), (8, 2592600571), (11, 1885527688), (22, 942763844), (44, 471381922), (71, 292124008), (88, 235690961), (121, 171411608), (142, 146062004), (242, 85705804), (284, 73031002), (307, 67559624), (484, 42852902), (568, 36515501), (614, 33779812), (781, 26556728), (968, 21426451), (983, 21099496), (1228, 16889906), (1562, 13278364), (1966, 10549748), (2456, 8444953), (3124, 6639182), (3377, 6141784), (3932, 5274874), (6248, 3319591), (6754, 3070892), (7864, 2637437), (8591, 2414248), (10813, 1918136), (13508, 1535446), (17182, 1207124), (21626, 959068), (21797, 951544), (27016, 767723), (34364, 603562), (37147, 558344), (43252, 479534), (43594, 475772), (68728, 301781), (69793, 297176), (74294, 279172), (86504, 239767), (87188, 237886), (118943, 174376), (139586, 148588)]