20103564

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:487

約数の個数: 72

約数和(自身を含む): 53125632

約数和(自身を除く): 33022068

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 92, 138, 156, 169, 276, 299, 338, 431, 507, 598, 676, 862, 897, 1014, 1196, 1293, 1724, 1794, 2028, 2586, 3588, 3887, 5172, 5603, 7774, 9913, 11206, 11661, 15548, 16809, 19826, 22412, 23322, 29739, 33618, 39652, 46644, 59478, 67236, 72839, 118956, 128869, 145678, 218517, 257738, 291356, 386607, 437034, 515476, 773214, 874068, 1546428, 1675297, 3350594, 5025891, 6701188, 10051782, 20103564]

約数ペア:

[(1, 20103564), (2, 10051782), (3, 6701188), (4, 5025891), (6, 3350594), (12, 1675297), (13, 1546428), (23, 874068), (26, 773214), (39, 515476), (46, 437034), (52, 386607), (69, 291356), (78, 257738), (92, 218517), (138, 145678), (156, 128869), (169, 118956), (276, 72839), (299, 67236), (338, 59478), (431, 46644), (507, 39652), (598, 33618), (676, 29739), (862, 23322), (897, 22412), (1014, 19826), (1196, 16809), (1293, 15548), (1724, 11661), (1794, 11206), (2028, 9913), (2586, 7774), (3588, 5603), (3887, 5172)]