51279840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:409

約数の個数: 144

約数和(自身を含む): 176904000

約数和(自身を除く): 125624160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 149, 160, 180, 239, 240, 288, 298, 360, 447, 478, 480, 596, 717, 720, 745, 894, 956, 1192, 1195, 1341, 1434, 1440, 1490, 1788, 1912, 2151, 2235, 2384, 2390, 2682, 2868, 2980, 3576, 3585, 3824, 4302, 4470, 4768, 4780, 5364, 5736, 5960, 6705, 7152, 7170, 7648, 8604, 8940, 9560, 10728, 10755, 11472, 11920, 13410, 14304, 14340, 17208, 17880, 19120, 21456, 21510, 22944, 23840, 26820, 28680, 34416, 35611, 35760, 38240, 42912, 43020, 53640, 57360, 68832, 71222, 71520, 86040, 106833, 107280, 114720, 142444, 172080, 178055, 213666, 214560, 284888, 320499, 344160, 356110, 427332, 534165, 569776, 640998, 712220, 854664, 1068330, 1139552, 1281996, 1424440, 1602495, 1709328, 2136660, 2563992, 2848880, 3204990, 3418656, 4273320, 5127984, 5697760, 6409980, 8546640, 10255968, 12819960, 17093280, 25639920, 51279840]

約数ペア:

[(1, 51279840), (2, 25639920), (3, 17093280), (4, 12819960), (5, 10255968), (6, 8546640), (8, 6409980), (9, 5697760), (10, 5127984), (12, 4273320), (15, 3418656), (16, 3204990), (18, 2848880), (20, 2563992), (24, 2136660), (30, 1709328), (32, 1602495), (36, 1424440), (40, 1281996), (45, 1139552), (48, 1068330), (60, 854664), (72, 712220), (80, 640998), (90, 569776), (96, 534165), (120, 427332), (144, 356110), (149, 344160), (160, 320499), (180, 284888), (239, 214560), (240, 213666), (288, 178055), (298, 172080), (360, 142444), (447, 114720), (478, 107280), (480, 106833), (596, 86040), (717, 71520), (720, 71222), (745, 68832), (894, 57360), (956, 53640), (1192, 43020), (1195, 42912), (1341, 38240), (1434, 35760), (1440, 35611), (1490, 34416), (1788, 28680), (1912, 26820), (2151, 23840), (2235, 22944), (2384, 21510), (2390, 21456), (2682, 19120), (2868, 17880), (2980, 17208), (3576, 14340), (3585, 14304), (3824, 13410), (4302, 11920), (4470, 11472), (4768, 10755), (4780, 10728), (5364, 9560), (5736, 8940), (5960, 8604), (6705, 7648), (7152, 7170)]