20277400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{709}}^1$

素因数の和:749

約数の個数: 96

約数和(自身を含む): 55465200

約数和(自身を除く): 35187800

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 25, 26, 40, 44, 50, 52, 55, 65, 88, 100, 104, 110, 130, 143, 200, 220, 260, 275, 286, 325, 440, 520, 550, 572, 650, 709, 715, 1100, 1144, 1300, 1418, 1430, 2200, 2600, 2836, 2860, 3545, 3575, 5672, 5720, 7090, 7150, 7799, 9217, 14180, 14300, 15598, 17725, 18434, 28360, 28600, 31196, 35450, 36868, 38995, 46085, 62392, 70900, 73736, 77990, 92170, 101387, 141800, 155980, 184340, 194975, 202774, 230425, 311960, 368680, 389950, 405548, 460850, 506935, 779900, 811096, 921700, 1013870, 1559800, 1843400, 2027740, 2534675, 4055480, 5069350, 10138700, 20277400]

約数ペア:

[(1, 20277400), (2, 10138700), (4, 5069350), (5, 4055480), (8, 2534675), (10, 2027740), (11, 1843400), (13, 1559800), (20, 1013870), (22, 921700), (25, 811096), (26, 779900), (40, 506935), (44, 460850), (50, 405548), (52, 389950), (55, 368680), (65, 311960), (88, 230425), (100, 202774), (104, 194975), (110, 184340), (130, 155980), (143, 141800), (200, 101387), (220, 92170), (260, 77990), (275, 73736), (286, 70900), (325, 62392), (440, 46085), (520, 38995), (550, 36868), (572, 35450), (650, 31196), (709, 28600), (715, 28360), (1100, 18434), (1144, 17725), (1300, 15598), (1418, 14300), (1430, 14180), (2200, 9217), (2600, 7799), (2836, 7150), (2860, 7090), (3545, 5720), (3575, 5672)]