20765550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{463}}^1$

素因数の和:514

約数の個数: 96

約数和(自身を含む): 57996288

約数和(自身を除く): 37230738

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 25, 26, 30, 39, 46, 50, 65, 69, 75, 78, 115, 130, 138, 150, 195, 230, 299, 325, 345, 390, 463, 575, 598, 650, 690, 897, 926, 975, 1150, 1389, 1495, 1725, 1794, 1950, 2315, 2778, 2990, 3450, 4485, 4630, 6019, 6945, 7475, 8970, 10649, 11575, 12038, 13890, 14950, 18057, 21298, 22425, 23150, 30095, 31947, 34725, 36114, 44850, 53245, 60190, 63894, 69450, 90285, 106490, 138437, 150475, 159735, 180570, 266225, 276874, 300950, 319470, 415311, 451425, 532450, 692185, 798675, 830622, 902850, 1384370, 1597350, 2076555, 3460925, 4153110, 6921850, 10382775, 20765550]

約数ペア:

[(1, 20765550), (2, 10382775), (3, 6921850), (5, 4153110), (6, 3460925), (10, 2076555), (13, 1597350), (15, 1384370), (23, 902850), (25, 830622), (26, 798675), (30, 692185), (39, 532450), (46, 451425), (50, 415311), (65, 319470), (69, 300950), (75, 276874), (78, 266225), (115, 180570), (130, 159735), (138, 150475), (150, 138437), (195, 106490), (230, 90285), (299, 69450), (325, 63894), (345, 60190), (390, 53245), (463, 44850), (575, 36114), (598, 34725), (650, 31947), (690, 30095), (897, 23150), (926, 22425), (975, 21298), (1150, 18057), (1389, 14950), (1495, 13890), (1725, 12038), (1794, 11575), (1950, 10649), (2315, 8970), (2778, 7475), (2990, 6945), (3450, 6019), (4485, 4630)]