315725440

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:322

約数の個数: 128

約数和(自身を含む): 790704000

約数和(自身を除く): 474978560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 67, 74, 80, 128, 134, 148, 160, 185, 199, 268, 296, 320, 335, 370, 398, 536, 592, 640, 670, 740, 796, 995, 1072, 1184, 1340, 1480, 1592, 1990, 2144, 2368, 2479, 2680, 2960, 3184, 3980, 4288, 4736, 4958, 5360, 5920, 6368, 7363, 7960, 8576, 9916, 10720, 11840, 12395, 12736, 13333, 14726, 15920, 19832, 21440, 23680, 24790, 25472, 26666, 29452, 31840, 36815, 39664, 42880, 49580, 53332, 58904, 63680, 66665, 73630, 79328, 99160, 106664, 117808, 127360, 133330, 147260, 158656, 198320, 213328, 235616, 266660, 294520, 317312, 396640, 426656, 471232, 493321, 533320, 589040, 793280, 853312, 942464, 986642, 1066640, 1178080, 1586560, 1706624, 1973284, 2133280, 2356160, 2466605, 3946568, 4266560, 4712320, 4933210, 7893136, 8533120, 9866420, 15786272, 19732840, 31572544, 39465680, 63145088, 78931360, 157862720, 315725440]

約数ペア:

[(1, 315725440), (2, 157862720), (4, 78931360), (5, 63145088), (8, 39465680), (10, 31572544), (16, 19732840), (20, 15786272), (32, 9866420), (37, 8533120), (40, 7893136), (64, 4933210), (67, 4712320), (74, 4266560), (80, 3946568), (128, 2466605), (134, 2356160), (148, 2133280), (160, 1973284), (185, 1706624), (199, 1586560), (268, 1178080), (296, 1066640), (320, 986642), (335, 942464), (370, 853312), (398, 793280), (536, 589040), (592, 533320), (640, 493321), (670, 471232), (740, 426656), (796, 396640), (995, 317312), (1072, 294520), (1184, 266660), (1340, 235616), (1480, 213328), (1592, 198320), (1990, 158656), (2144, 147260), (2368, 133330), (2479, 127360), (2680, 117808), (2960, 106664), (3184, 99160), (3980, 79328), (4288, 73630), (4736, 66665), (4958, 63680), (5360, 58904), (5920, 53332), (6368, 49580), (7363, 42880), (7960, 39664), (8576, 36815), (9916, 31840), (10720, 29452), (11840, 26666), (12395, 25472), (12736, 24790), (13333, 23680), (14726, 21440), (15920, 19832)]