15979700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 38539200

約数和(自身を除く): 22559500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 73, 100, 110, 146, 199, 220, 275, 292, 365, 398, 550, 730, 796, 803, 995, 1100, 1460, 1606, 1825, 1990, 2189, 3212, 3650, 3980, 4015, 4378, 4975, 7300, 8030, 8756, 9950, 10945, 14527, 16060, 19900, 20075, 21890, 29054, 40150, 43780, 54725, 58108, 72635, 80300, 109450, 145270, 159797, 218900, 290540, 319594, 363175, 639188, 726350, 798985, 1452700, 1597970, 3195940, 3994925, 7989850, 15979700]

約数ペア:

[(1, 15979700), (2, 7989850), (4, 3994925), (5, 3195940), (10, 1597970), (11, 1452700), (20, 798985), (22, 726350), (25, 639188), (44, 363175), (50, 319594), (55, 290540), (73, 218900), (100, 159797), (110, 145270), (146, 109450), (199, 80300), (220, 72635), (275, 58108), (292, 54725), (365, 43780), (398, 40150), (550, 29054), (730, 21890), (796, 20075), (803, 19900), (995, 16060), (1100, 14527), (1460, 10945), (1606, 9950), (1825, 8756), (1990, 8030), (2189, 7300), (3212, 4975), (3650, 4378), (3980, 4015)]