20178593680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^2\times {\mathrm{349}}^1$

素因数の和:526

約数の個数: 240

約数和(自身を含む): 56958854400

約数和(自身を除く): 36780260720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 67, 70, 80, 92, 112, 115, 134, 140, 161, 184, 230, 268, 280, 322, 335, 349, 368, 460, 469, 536, 560, 644, 670, 698, 805, 920, 938, 1072, 1288, 1340, 1396, 1541, 1610, 1745, 1840, 1876, 2345, 2443, 2576, 2680, 2792, 3082, 3220, 3490, 3752, 4489, 4690, 4886, 5360, 5584, 6164, 6440, 6980, 7504, 7705, 8027, 8978, 9380, 9772, 10787, 12215, 12328, 12880, 13960, 15410, 16054, 17956, 18760, 19544, 21574, 22445, 23383, 24430, 24656, 27920, 30820, 31423, 32108, 35912, 37520, 39088, 40135, 43148, 44890, 46766, 48860, 53935, 56189, 61640, 62846, 64216, 71824, 80270, 86296, 89780, 93532, 97720, 103247, 107870, 112378, 116915, 123280, 125692, 128432, 157115, 160540, 163681, 172592, 179560, 187064, 195440, 206494, 215740, 224756, 233830, 251384, 280945, 314230, 321080, 327362, 359120, 374128, 412988, 431480, 449512, 467660, 502768, 516235, 537809, 561890, 628460, 642160, 654724, 722729, 818405, 825976, 862960, 899024, 935320, 1032470, 1075618, 1123780, 1256920, 1309448, 1445458, 1566661, 1636810, 1651952, 1870640, 2064940, 2151236, 2247560, 2513840, 2618896, 2689045, 2890916, 3133322, 3273620, 3613645, 3764663, 4129880, 4302472, 4495120, 5378090, 5781832, 6266644, 6547240, 7227290, 7529326, 7833305, 8259760, 8604944, 10756180, 10966627, 11563664, 12533288, 13094480, 14454580, 15058652, 15666610, 18823315, 21512360, 21933254, 25066576, 28909160, 30117304, 31333220, 36033203, 37646630, 43024720, 43866508, 54833135, 57818320, 60234608, 62666440, 72066406, 75293260, 87733016, 109666270, 125332880, 144132812, 150586520, 175466032, 180166015, 219332540, 252232421, 288265624, 301173040, 360332030, 438665080, 504464842, 576531248, 720664060, 877330160, 1008929684, 1261162105, 1441328120, 2017859368, 2522324210, 2882656240, 4035718736, 5044648420, 10089296840, 20178593680]

約数ペア:

[(1, 20178593680), (2, 10089296840), (4, 5044648420), (5, 4035718736), (7, 2882656240), (8, 2522324210), (10, 2017859368), (14, 1441328120), (16, 1261162105), (20, 1008929684), (23, 877330160), (28, 720664060), (35, 576531248), (40, 504464842), (46, 438665080), (56, 360332030), (67, 301173040), (70, 288265624), (80, 252232421), (92, 219332540), (112, 180166015), (115, 175466032), (134, 150586520), (140, 144132812), (161, 125332880), (184, 109666270), (230, 87733016), (268, 75293260), (280, 72066406), (322, 62666440), (335, 60234608), (349, 57818320), (368, 54833135), (460, 43866508), (469, 43024720), (536, 37646630), (560, 36033203), (644, 31333220), (670, 30117304), (698, 28909160), (805, 25066576), (920, 21933254), (938, 21512360), (1072, 18823315), (1288, 15666610), (1340, 15058652), (1396, 14454580), (1541, 13094480), (1610, 12533288), (1745, 11563664), (1840, 10966627), (1876, 10756180), (2345, 8604944), (2443, 8259760), (2576, 7833305), (2680, 7529326), (2792, 7227290), (3082, 6547240), (3220, 6266644), (3490, 5781832), (3752, 5378090), (4489, 4495120), (4690, 4302472), (4886, 4129880), (5360, 3764663), (5584, 3613645), (6164, 3273620), (6440, 3133322), (6980, 2890916), (7504, 2689045), (7705, 2618896), (8027, 2513840), (8978, 2247560), (9380, 2151236), (9772, 2064940), (10787, 1870640), (12215, 1651952), (12328, 1636810), (12880, 1566661), (13960, 1445458), (15410, 1309448), (16054, 1256920), (17956, 1123780), (18760, 1075618), (19544, 1032470), (21574, 935320), (22445, 899024), (23383, 862960), (24430, 825976), (24656, 818405), (27920, 722729), (30820, 654724), (31423, 642160), (32108, 628460), (35912, 561890), (37520, 537809), (39088, 516235), (40135, 502768), (43148, 467660), (44890, 449512), (46766, 431480), (48860, 412988), (53935, 374128), (56189, 359120), (61640, 327362), (62846, 321080), (64216, 314230), (71824, 280945), (80270, 251384), (86296, 233830), (89780, 224756), (93532, 215740), (97720, 206494), (103247, 195440), (107870, 187064), (112378, 179560), (116915, 172592), (123280, 163681), (125692, 160540), (128432, 157115)]