20658600

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{499}}^1$

素因数の和:544

約数の個数: 144

約数和(自身を含む): 72540000

約数和(自身を除く): 51881400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 25, 30, 36, 40, 45, 46, 50, 60, 69, 72, 75, 90, 92, 100, 115, 120, 138, 150, 180, 184, 200, 207, 225, 230, 276, 300, 345, 360, 414, 450, 460, 499, 552, 575, 600, 690, 828, 900, 920, 998, 1035, 1150, 1380, 1497, 1656, 1725, 1800, 1996, 2070, 2300, 2495, 2760, 2994, 3450, 3992, 4140, 4491, 4600, 4990, 5175, 5988, 6900, 7485, 8280, 8982, 9980, 10350, 11477, 11976, 12475, 13800, 14970, 17964, 19960, 20700, 22455, 22954, 24950, 29940, 34431, 35928, 37425, 41400, 44910, 45908, 49900, 57385, 59880, 68862, 74850, 89820, 91816, 99800, 103293, 112275, 114770, 137724, 149700, 172155, 179640, 206586, 224550, 229540, 275448, 286925, 299400, 344310, 413172, 449100, 459080, 516465, 573850, 688620, 826344, 860775, 898200, 1032930, 1147700, 1377240, 1721550, 2065860, 2295400, 2582325, 3443100, 4131720, 5164650, 6886200, 10329300, 20658600]

約数ペア:

[(1, 20658600), (2, 10329300), (3, 6886200), (4, 5164650), (5, 4131720), (6, 3443100), (8, 2582325), (9, 2295400), (10, 2065860), (12, 1721550), (15, 1377240), (18, 1147700), (20, 1032930), (23, 898200), (24, 860775), (25, 826344), (30, 688620), (36, 573850), (40, 516465), (45, 459080), (46, 449100), (50, 413172), (60, 344310), (69, 299400), (72, 286925), (75, 275448), (90, 229540), (92, 224550), (100, 206586), (115, 179640), (120, 172155), (138, 149700), (150, 137724), (180, 114770), (184, 112275), (200, 103293), (207, 99800), (225, 91816), (230, 89820), (276, 74850), (300, 68862), (345, 59880), (360, 57385), (414, 49900), (450, 45908), (460, 44910), (499, 41400), (552, 37425), (575, 35928), (600, 34431), (690, 29940), (828, 24950), (900, 22954), (920, 22455), (998, 20700), (1035, 19960), (1150, 17964), (1380, 14970), (1497, 13800), (1656, 12475), (1725, 11976), (1800, 11477), (1996, 10350), (2070, 9980), (2300, 8982), (2495, 8280), (2760, 7485), (2994, 6900), (3450, 5988), (3992, 5175), (4140, 4990), (4491, 4600)]