20138184880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2080391}}^1$

素因数の和:2080426

約数の個数: 60

約数和(自身を含む): 51464737296

約数和(自身を除く): 31326552416

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2420, 4840, 9680, 2080391, 4160782, 8321564, 10401955, 16643128, 20803910, 22884301, 33286256, 41607820, 45768602, 83215640, 91537204, 114421505, 166431280, 183074408, 228843010, 251727311, 366148816, 457686020, 503454622, 915372040, 1006909244, 1258636555, 1830744080, 2013818488, 2517273110, 4027636976, 5034546220, 10069092440, 20138184880]

約数ペア:

[(1, 20138184880), (2, 10069092440), (4, 5034546220), (5, 4027636976), (8, 2517273110), (10, 2013818488), (11, 1830744080), (16, 1258636555), (20, 1006909244), (22, 915372040), (40, 503454622), (44, 457686020), (55, 366148816), (80, 251727311), (88, 228843010), (110, 183074408), (121, 166431280), (176, 114421505), (220, 91537204), (242, 83215640), (440, 45768602), (484, 41607820), (605, 33286256), (880, 22884301), (968, 20803910), (1210, 16643128), (1936, 10401955), (2420, 8321564), (4840, 4160782), (9680, 2080391)]