20492080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:123

約数の個数: 160

約数和(自身を含む): 59710464

約数和(自身を除く): 39218384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 37, 40, 43, 46, 56, 70, 74, 80, 86, 92, 112, 115, 140, 148, 161, 172, 184, 185, 215, 230, 259, 280, 296, 301, 322, 344, 368, 370, 430, 460, 518, 560, 592, 602, 644, 688, 740, 805, 851, 860, 920, 989, 1036, 1204, 1288, 1295, 1480, 1505, 1591, 1610, 1702, 1720, 1840, 1978, 2072, 2408, 2576, 2590, 2960, 3010, 3182, 3220, 3404, 3440, 3956, 4144, 4255, 4816, 4945, 5180, 5957, 6020, 6364, 6440, 6808, 6923, 7912, 7955, 8510, 9890, 10360, 11137, 11914, 12040, 12728, 12880, 13616, 13846, 15824, 15910, 17020, 19780, 20720, 22274, 23828, 24080, 25456, 27692, 29785, 31820, 34040, 34615, 36593, 39560, 44548, 47656, 55384, 55685, 59570, 63640, 68080, 69230, 73186, 79120, 89096, 95312, 110768, 111370, 119140, 127280, 138460, 146372, 178192, 182965, 222740, 238280, 256151, 276920, 292744, 365930, 445480, 476560, 512302, 553840, 585488, 731860, 890960, 1024604, 1280755, 1463720, 2049208, 2561510, 2927440, 4098416, 5123020, 10246040, 20492080]

約数ペア:

[(1, 20492080), (2, 10246040), (4, 5123020), (5, 4098416), (7, 2927440), (8, 2561510), (10, 2049208), (14, 1463720), (16, 1280755), (20, 1024604), (23, 890960), (28, 731860), (35, 585488), (37, 553840), (40, 512302), (43, 476560), (46, 445480), (56, 365930), (70, 292744), (74, 276920), (80, 256151), (86, 238280), (92, 222740), (112, 182965), (115, 178192), (140, 146372), (148, 138460), (161, 127280), (172, 119140), (184, 111370), (185, 110768), (215, 95312), (230, 89096), (259, 79120), (280, 73186), (296, 69230), (301, 68080), (322, 63640), (344, 59570), (368, 55685), (370, 55384), (430, 47656), (460, 44548), (518, 39560), (560, 36593), (592, 34615), (602, 34040), (644, 31820), (688, 29785), (740, 27692), (805, 25456), (851, 24080), (860, 23828), (920, 22274), (989, 20720), (1036, 19780), (1204, 17020), (1288, 15910), (1295, 15824), (1480, 13846), (1505, 13616), (1591, 12880), (1610, 12728), (1702, 12040), (1720, 11914), (1840, 11137), (1978, 10360), (2072, 9890), (2408, 8510), (2576, 7955), (2590, 7912), (2960, 6923), (3010, 6808), (3182, 6440), (3220, 6364), (3404, 6020), (3440, 5957), (3956, 5180), (4144, 4945), (4255, 4816)]