205068720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:731

約数の個数: 160

約数和(自身を含む): 672528384

約数和(自身を除く): 467459664

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 43, 48, 60, 62, 80, 86, 93, 120, 124, 129, 155, 172, 186, 215, 240, 248, 258, 310, 344, 372, 430, 465, 496, 516, 620, 641, 645, 688, 744, 860, 930, 1032, 1240, 1282, 1290, 1333, 1488, 1720, 1860, 1923, 2064, 2480, 2564, 2580, 2666, 3205, 3440, 3720, 3846, 3999, 5128, 5160, 5332, 6410, 6665, 7440, 7692, 7998, 9615, 10256, 10320, 10664, 12820, 13330, 15384, 15996, 19230, 19871, 19995, 21328, 25640, 26660, 27563, 30768, 31992, 38460, 39742, 39990, 51280, 53320, 55126, 59613, 63984, 76920, 79484, 79980, 82689, 99355, 106640, 110252, 119226, 137815, 153840, 158968, 159960, 165378, 198710, 220504, 238452, 275630, 298065, 317936, 319920, 330756, 397420, 413445, 441008, 476904, 551260, 596130, 661512, 794840, 826890, 854453, 953808, 1102520, 1192260, 1323024, 1589680, 1653780, 1708906, 2205040, 2384520, 2563359, 3307560, 3417812, 4272265, 4769040, 5126718, 6615120, 6835624, 8544530, 10253436, 12816795, 13671248, 17089060, 20506872, 25633590, 34178120, 41013744, 51267180, 68356240, 102534360, 205068720]

約数ペア:

[(1, 205068720), (2, 102534360), (3, 68356240), (4, 51267180), (5, 41013744), (6, 34178120), (8, 25633590), (10, 20506872), (12, 17089060), (15, 13671248), (16, 12816795), (20, 10253436), (24, 8544530), (30, 6835624), (31, 6615120), (40, 5126718), (43, 4769040), (48, 4272265), (60, 3417812), (62, 3307560), (80, 2563359), (86, 2384520), (93, 2205040), (120, 1708906), (124, 1653780), (129, 1589680), (155, 1323024), (172, 1192260), (186, 1102520), (215, 953808), (240, 854453), (248, 826890), (258, 794840), (310, 661512), (344, 596130), (372, 551260), (430, 476904), (465, 441008), (496, 413445), (516, 397420), (620, 330756), (641, 319920), (645, 317936), (688, 298065), (744, 275630), (860, 238452), (930, 220504), (1032, 198710), (1240, 165378), (1282, 159960), (1290, 158968), (1333, 153840), (1488, 137815), (1720, 119226), (1860, 110252), (1923, 106640), (2064, 99355), (2480, 82689), (2564, 79980), (2580, 79484), (2666, 76920), (3205, 63984), (3440, 59613), (3720, 55126), (3846, 53320), (3999, 51280), (5128, 39990), (5160, 39742), (5332, 38460), (6410, 31992), (6665, 30768), (7440, 27563), (7692, 26660), (7998, 25640), (9615, 21328), (10256, 19995), (10320, 19871), (10664, 19230), (12820, 15996), (13330, 15384)]