251505280

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:131

約数の個数: 256

約数和(自身を含む): 716284800

約数和(自身を除く): 464779520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 37, 38, 40, 43, 52, 64, 65, 74, 76, 80, 86, 95, 104, 128, 130, 148, 152, 160, 172, 185, 190, 208, 215, 247, 260, 296, 304, 320, 344, 370, 380, 416, 430, 481, 494, 520, 559, 592, 608, 640, 688, 703, 740, 760, 817, 832, 860, 962, 988, 1040, 1118, 1184, 1216, 1235, 1376, 1406, 1480, 1520, 1591, 1634, 1664, 1720, 1924, 1976, 2080, 2236, 2368, 2405, 2432, 2470, 2752, 2795, 2812, 2960, 3040, 3182, 3268, 3440, 3515, 3848, 3952, 4085, 4160, 4472, 4736, 4810, 4940, 5504, 5590, 5624, 5920, 6080, 6364, 6536, 6880, 7030, 7696, 7904, 7955, 8170, 8320, 8944, 9139, 9620, 9880, 10621, 11180, 11248, 11840, 12160, 12728, 13072, 13760, 14060, 15392, 15808, 15910, 16340, 17888, 18278, 19240, 19760, 20683, 21242, 22360, 22496, 23680, 25456, 26144, 27520, 28120, 30229, 30784, 31616, 31820, 32680, 35776, 36556, 38480, 39520, 41366, 42484, 44720, 44992, 45695, 50912, 52288, 53105, 56240, 60458, 61568, 63640, 65360, 71552, 73112, 76960, 79040, 82732, 84968, 89440, 89984, 91390, 101824, 103415, 104576, 106210, 112480, 120916, 127280, 130720, 146224, 151145, 153920, 158080, 165464, 169936, 178880, 182780, 203648, 206830, 212420, 224960, 241832, 254560, 261440, 292448, 302290, 307840, 330928, 339872, 357760, 365560, 392977, 413660, 424840, 449920, 483664, 509120, 522880, 584896, 604580, 661856, 679744, 731120, 785954, 827320, 849680, 967328, 1018240, 1169792, 1209160, 1323712, 1359488, 1462240, 1571908, 1654640, 1699360, 1934656, 1964885, 2418320, 2647424, 2924480, 3143816, 3309280, 3398720, 3869312, 3929770, 4836640, 5848960, 6287632, 6618560, 6797440, 7859540, 9673280, 12575264, 13237120, 15719080, 19346560, 25150528, 31438160, 50301056, 62876320, 125752640, 251505280]

約数ペア:

[(1, 251505280), (2, 125752640), (4, 62876320), (5, 50301056), (8, 31438160), (10, 25150528), (13, 19346560), (16, 15719080), (19, 13237120), (20, 12575264), (26, 9673280), (32, 7859540), (37, 6797440), (38, 6618560), (40, 6287632), (43, 5848960), (52, 4836640), (64, 3929770), (65, 3869312), (74, 3398720), (76, 3309280), (80, 3143816), (86, 2924480), (95, 2647424), (104, 2418320), (128, 1964885), (130, 1934656), (148, 1699360), (152, 1654640), (160, 1571908), (172, 1462240), (185, 1359488), (190, 1323712), (208, 1209160), (215, 1169792), (247, 1018240), (260, 967328), (296, 849680), (304, 827320), (320, 785954), (344, 731120), (370, 679744), (380, 661856), (416, 604580), (430, 584896), (481, 522880), (494, 509120), (520, 483664), (559, 449920), (592, 424840), (608, 413660), (640, 392977), (688, 365560), (703, 357760), (740, 339872), (760, 330928), (817, 307840), (832, 302290), (860, 292448), (962, 261440), (988, 254560), (1040, 241832), (1118, 224960), (1184, 212420), (1216, 206830), (1235, 203648), (1376, 182780), (1406, 178880), (1480, 169936), (1520, 165464), (1591, 158080), (1634, 153920), (1664, 151145), (1720, 146224), (1924, 130720), (1976, 127280), (2080, 120916), (2236, 112480), (2368, 106210), (2405, 104576), (2432, 103415), (2470, 101824), (2752, 91390), (2795, 89984), (2812, 89440), (2960, 84968), (3040, 82732), (3182, 79040), (3268, 76960), (3440, 73112), (3515, 71552), (3848, 65360), (3952, 63640), (4085, 61568), (4160, 60458), (4472, 56240), (4736, 53105), (4810, 52288), (4940, 50912), (5504, 45695), (5590, 44992), (5624, 44720), (5920, 42484), (6080, 41366), (6364, 39520), (6536, 38480), (6880, 36556), (7030, 35776), (7696, 32680), (7904, 31820), (7955, 31616), (8170, 30784), (8320, 30229), (8944, 28120), (9139, 27520), (9620, 26144), (9880, 25456), (10621, 23680), (11180, 22496), (11248, 22360), (11840, 21242), (12160, 20683), (12728, 19760), (13072, 19240), (13760, 18278), (14060, 17888), (15392, 16340), (15808, 15910)]