210720640

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:125

約数の個数: 256

約数和(自身を含む): 603187200

約数和(自身を除く): 392466560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 32, 38, 40, 43, 52, 62, 64, 65, 76, 80, 86, 95, 104, 124, 128, 130, 152, 155, 160, 172, 190, 208, 215, 247, 248, 260, 304, 310, 320, 344, 380, 403, 416, 430, 494, 496, 520, 559, 589, 608, 620, 640, 688, 760, 806, 817, 832, 860, 988, 992, 1040, 1118, 1178, 1216, 1235, 1240, 1333, 1376, 1520, 1612, 1634, 1664, 1720, 1976, 1984, 2015, 2080, 2236, 2356, 2432, 2470, 2480, 2666, 2752, 2795, 2945, 3040, 3224, 3268, 3440, 3952, 3968, 4030, 4085, 4160, 4472, 4712, 4940, 4960, 5332, 5504, 5590, 5890, 6080, 6448, 6536, 6665, 6880, 7657, 7904, 8060, 8170, 8320, 8944, 9424, 9880, 9920, 10621, 10664, 11180, 11780, 12160, 12896, 13072, 13330, 13760, 15314, 15808, 16120, 16340, 17329, 17888, 18848, 19760, 19840, 21242, 21328, 22360, 23560, 25327, 25792, 26144, 26660, 27520, 30628, 31616, 32240, 32680, 34658, 35776, 37696, 38285, 39520, 42484, 42656, 44720, 47120, 50654, 51584, 52288, 53105, 53320, 61256, 64480, 65360, 69316, 71552, 75392, 76570, 79040, 84968, 85312, 86645, 89440, 94240, 101308, 104576, 106210, 106640, 122512, 126635, 128960, 130720, 138632, 153140, 158080, 169936, 170624, 173290, 178880, 188480, 202616, 212420, 213280, 245024, 253270, 257920, 261440, 277264, 306280, 329251, 339872, 346580, 357760, 376960, 405232, 424840, 426560, 490048, 506540, 522880, 554528, 612560, 658502, 679744, 693160, 810464, 849680, 853120, 980096, 1013080, 1109056, 1225120, 1317004, 1359488, 1386320, 1620928, 1646255, 1699360, 2026160, 2218112, 2450240, 2634008, 2772640, 3241856, 3292510, 3398720, 4052320, 4900480, 5268016, 5545280, 6585020, 6797440, 8104640, 10536032, 11090560, 13170040, 16209280, 21072064, 26340080, 42144128, 52680160, 105360320, 210720640]

約数ペア:

[(1, 210720640), (2, 105360320), (4, 52680160), (5, 42144128), (8, 26340080), (10, 21072064), (13, 16209280), (16, 13170040), (19, 11090560), (20, 10536032), (26, 8104640), (31, 6797440), (32, 6585020), (38, 5545280), (40, 5268016), (43, 4900480), (52, 4052320), (62, 3398720), (64, 3292510), (65, 3241856), (76, 2772640), (80, 2634008), (86, 2450240), (95, 2218112), (104, 2026160), (124, 1699360), (128, 1646255), (130, 1620928), (152, 1386320), (155, 1359488), (160, 1317004), (172, 1225120), (190, 1109056), (208, 1013080), (215, 980096), (247, 853120), (248, 849680), (260, 810464), (304, 693160), (310, 679744), (320, 658502), (344, 612560), (380, 554528), (403, 522880), (416, 506540), (430, 490048), (494, 426560), (496, 424840), (520, 405232), (559, 376960), (589, 357760), (608, 346580), (620, 339872), (640, 329251), (688, 306280), (760, 277264), (806, 261440), (817, 257920), (832, 253270), (860, 245024), (988, 213280), (992, 212420), (1040, 202616), (1118, 188480), (1178, 178880), (1216, 173290), (1235, 170624), (1240, 169936), (1333, 158080), (1376, 153140), (1520, 138632), (1612, 130720), (1634, 128960), (1664, 126635), (1720, 122512), (1976, 106640), (1984, 106210), (2015, 104576), (2080, 101308), (2236, 94240), (2356, 89440), (2432, 86645), (2470, 85312), (2480, 84968), (2666, 79040), (2752, 76570), (2795, 75392), (2945, 71552), (3040, 69316), (3224, 65360), (3268, 64480), (3440, 61256), (3952, 53320), (3968, 53105), (4030, 52288), (4085, 51584), (4160, 50654), (4472, 47120), (4712, 44720), (4940, 42656), (4960, 42484), (5332, 39520), (5504, 38285), (5590, 37696), (5890, 35776), (6080, 34658), (6448, 32680), (6536, 32240), (6665, 31616), (6880, 30628), (7657, 27520), (7904, 26660), (8060, 26144), (8170, 25792), (8320, 25327), (8944, 23560), (9424, 22360), (9880, 21328), (9920, 21242), (10621, 19840), (10664, 19760), (11180, 18848), (11780, 17888), (12160, 17329), (12896, 16340), (13072, 16120), (13330, 15808), (13760, 15314)]