214950975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 387379968

約数和(自身を除く): 172428993

約数列:

[1, 3, 5, 15, 17, 25, 47, 51, 75, 85, 141, 211, 235, 255, 289, 425, 633, 705, 799, 867, 1055, 1175, 1275, 1445, 2397, 3165, 3525, 3587, 3995, 4335, 5275, 7225, 9917, 10761, 11985, 13583, 15825, 17935, 19975, 21675, 29751, 40749, 49585, 53805, 59925, 60979, 67915, 89675, 148755, 168589, 182937, 203745, 247925, 269025, 304895, 339575, 505767, 743775, 842945, 914685, 1018725, 1524475, 2528835, 2866013, 4214725, 4573425, 8598039, 12644175, 14330065, 42990195, 71650325, 214950975]

約数ペア:

[(1, 214950975), (3, 71650325), (5, 42990195), (15, 14330065), (17, 12644175), (25, 8598039), (47, 4573425), (51, 4214725), (75, 2866013), (85, 2528835), (141, 1524475), (211, 1018725), (235, 914685), (255, 842945), (289, 743775), (425, 505767), (633, 339575), (705, 304895), (799, 269025), (867, 247925), (1055, 203745), (1175, 182937), (1275, 168589), (1445, 148755), (2397, 89675), (3165, 67915), (3525, 60979), (3587, 59925), (3995, 53805), (4335, 49585), (5275, 40749), (7225, 29751), (9917, 21675), (10761, 19975), (11985, 17935), (13583, 15825)]