20806561688

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1\times {\mathrm{10337}}^1$

素因数の和:10700

約数の個数: 64

約数和(自身を含む): 43208704800

約数和(自身を除く): 22402143112

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 89, 178, 257, 356, 514, 712, 979, 1028, 1958, 2056, 2827, 3916, 5654, 7832, 10337, 11308, 20674, 22616, 22873, 41348, 45746, 82696, 91492, 113707, 182984, 227414, 251603, 454828, 503206, 909656, 919993, 1006412, 1839986, 2012824, 2656609, 3679972, 5313218, 7359944, 10119923, 10626436, 20239846, 21252872, 29222699, 40479692, 58445398, 80959384, 116890796, 233781592, 236438201, 472876402, 945752804, 1891505608, 2600820211, 5201640422, 10403280844, 20806561688]

約数ペア:

[(1, 20806561688), (2, 10403280844), (4, 5201640422), (8, 2600820211), (11, 1891505608), (22, 945752804), (44, 472876402), (88, 236438201), (89, 233781592), (178, 116890796), (257, 80959384), (356, 58445398), (514, 40479692), (712, 29222699), (979, 21252872), (1028, 20239846), (1958, 10626436), (2056, 10119923), (2827, 7359944), (3916, 5313218), (5654, 3679972), (7832, 2656609), (10337, 2012824), (11308, 1839986), (20674, 1006412), (22616, 919993), (22873, 909656), (41348, 503206), (45746, 454828), (82696, 251603), (91492, 227414), (113707, 182984)]