20366989240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{709}}^1\times {\mathrm{55243}}^1$

素因数の和:55976

約数の個数: 64

約数和(自身を含む): 49421282400

約数和(自身を除く): 29054293160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 709, 1418, 2836, 3545, 5672, 7090, 9217, 14180, 18434, 28360, 36868, 46085, 55243, 73736, 92170, 110486, 184340, 220972, 276215, 368680, 441944, 552430, 718159, 1104860, 1436318, 2209720, 2872636, 3590795, 5745272, 7181590, 14363180, 28726360, 39167287, 78334574, 156669148, 195836435, 313338296, 391672870, 509174731, 783345740, 1018349462, 1566691480, 2036698924, 2545873655, 4073397848, 5091747310, 10183494620, 20366989240]

約数ペア:

[(1, 20366989240), (2, 10183494620), (4, 5091747310), (5, 4073397848), (8, 2545873655), (10, 2036698924), (13, 1566691480), (20, 1018349462), (26, 783345740), (40, 509174731), (52, 391672870), (65, 313338296), (104, 195836435), (130, 156669148), (260, 78334574), (520, 39167287), (709, 28726360), (1418, 14363180), (2836, 7181590), (3545, 5745272), (5672, 3590795), (7090, 2872636), (9217, 2209720), (14180, 1436318), (18434, 1104860), (28360, 718159), (36868, 552430), (46085, 441944), (55243, 368680), (73736, 276215), (92170, 220972), (110486, 184340)]