20284340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{853}}^1$

素因数の和:932

約数の個数: 48

約数和(自身を含む): 45193680

約数和(自身を除く): 24909340

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 82, 116, 145, 164, 205, 290, 410, 580, 820, 853, 1189, 1706, 2378, 3412, 4265, 4756, 5945, 8530, 11890, 17060, 23780, 24737, 34973, 49474, 69946, 98948, 123685, 139892, 174865, 247370, 349730, 494740, 699460, 1014217, 2028434, 4056868, 5071085, 10142170, 20284340]

約数ペア:

[(1, 20284340), (2, 10142170), (4, 5071085), (5, 4056868), (10, 2028434), (20, 1014217), (29, 699460), (41, 494740), (58, 349730), (82, 247370), (116, 174865), (145, 139892), (164, 123685), (205, 98948), (290, 69946), (410, 49474), (580, 34973), (820, 24737), (853, 23780), (1189, 17060), (1706, 11890), (2378, 8530), (3412, 5945), (4265, 4756)]