81968320

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:127

約数の個数: 224

約数和(自身を含む): 244620288

約数和(自身を除く): 162651968

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 37, 40, 43, 46, 56, 64, 70, 74, 80, 86, 92, 112, 115, 140, 148, 160, 161, 172, 184, 185, 215, 224, 230, 259, 280, 296, 301, 320, 322, 344, 368, 370, 430, 448, 460, 518, 560, 592, 602, 644, 688, 736, 740, 805, 851, 860, 920, 989, 1036, 1120, 1184, 1204, 1288, 1295, 1376, 1472, 1480, 1505, 1591, 1610, 1702, 1720, 1840, 1978, 2072, 2240, 2368, 2408, 2576, 2590, 2752, 2960, 3010, 3182, 3220, 3404, 3440, 3680, 3956, 4144, 4255, 4816, 4945, 5152, 5180, 5920, 5957, 6020, 6364, 6440, 6808, 6880, 6923, 7360, 7912, 7955, 8288, 8510, 9632, 9890, 10304, 10360, 11137, 11840, 11914, 12040, 12728, 12880, 13616, 13760, 13846, 15824, 15910, 16576, 17020, 19264, 19780, 20720, 22274, 23828, 24080, 25456, 25760, 27232, 27692, 29785, 31648, 31820, 34040, 34615, 36593, 39560, 41440, 44548, 47656, 48160, 50912, 51520, 54464, 55384, 55685, 59570, 63296, 63640, 68080, 69230, 73186, 79120, 82880, 89096, 95312, 96320, 101824, 110768, 111370, 119140, 127280, 136160, 138460, 146372, 158240, 178192, 182965, 190624, 221536, 222740, 238280, 254560, 256151, 272320, 276920, 292744, 316480, 356384, 365930, 381248, 443072, 445480, 476560, 509120, 512302, 553840, 585488, 712768, 731860, 890960, 953120, 1024604, 1107680, 1170976, 1280755, 1463720, 1781920, 1906240, 2049208, 2215360, 2341952, 2561510, 2927440, 3563840, 4098416, 5123020, 5854880, 8196832, 10246040, 11709760, 16393664, 20492080, 40984160, 81968320]

約数ペア:

[(1, 81968320), (2, 40984160), (4, 20492080), (5, 16393664), (7, 11709760), (8, 10246040), (10, 8196832), (14, 5854880), (16, 5123020), (20, 4098416), (23, 3563840), (28, 2927440), (32, 2561510), (35, 2341952), (37, 2215360), (40, 2049208), (43, 1906240), (46, 1781920), (56, 1463720), (64, 1280755), (70, 1170976), (74, 1107680), (80, 1024604), (86, 953120), (92, 890960), (112, 731860), (115, 712768), (140, 585488), (148, 553840), (160, 512302), (161, 509120), (172, 476560), (184, 445480), (185, 443072), (215, 381248), (224, 365930), (230, 356384), (259, 316480), (280, 292744), (296, 276920), (301, 272320), (320, 256151), (322, 254560), (344, 238280), (368, 222740), (370, 221536), (430, 190624), (448, 182965), (460, 178192), (518, 158240), (560, 146372), (592, 138460), (602, 136160), (644, 127280), (688, 119140), (736, 111370), (740, 110768), (805, 101824), (851, 96320), (860, 95312), (920, 89096), (989, 82880), (1036, 79120), (1120, 73186), (1184, 69230), (1204, 68080), (1288, 63640), (1295, 63296), (1376, 59570), (1472, 55685), (1480, 55384), (1505, 54464), (1591, 51520), (1610, 50912), (1702, 48160), (1720, 47656), (1840, 44548), (1978, 41440), (2072, 39560), (2240, 36593), (2368, 34615), (2408, 34040), (2576, 31820), (2590, 31648), (2752, 29785), (2960, 27692), (3010, 27232), (3182, 25760), (3220, 25456), (3404, 24080), (3440, 23828), (3680, 22274), (3956, 20720), (4144, 19780), (4255, 19264), (4816, 17020), (4945, 16576), (5152, 15910), (5180, 15824), (5920, 13846), (5957, 13760), (6020, 13616), (6364, 12880), (6440, 12728), (6808, 12040), (6880, 11914), (6923, 11840), (7360, 11137), (7912, 10360), (7955, 10304), (8288, 9890), (8510, 9632)]