20700788400

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{80989}}^1$

素因数の和:81084

約数の個数: 180

約数和(自身を含む): 72850181040

約数和(自身を除く): 52149392640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 71, 72, 75, 80, 90, 100, 120, 142, 144, 150, 180, 200, 213, 225, 240, 284, 300, 355, 360, 400, 426, 450, 568, 600, 639, 710, 720, 852, 900, 1065, 1136, 1200, 1278, 1420, 1704, 1775, 1800, 2130, 2556, 2840, 3195, 3408, 3550, 3600, 4260, 5112, 5325, 5680, 6390, 7100, 8520, 10224, 10650, 12780, 14200, 15975, 17040, 21300, 25560, 28400, 31950, 42600, 51120, 63900, 80989, 85200, 127800, 161978, 242967, 255600, 323956, 404945, 485934, 647912, 728901, 809890, 971868, 1214835, 1295824, 1457802, 1619780, 1943736, 2024725, 2429670, 2915604, 3239560, 3644505, 3887472, 4049450, 4859340, 5750219, 5831208, 6074175, 6479120, 7289010, 8098900, 9718680, 11500438, 11662416, 12148350, 14578020, 16197800, 17250657, 18222525, 19437360, 23000876, 24296700, 28751095, 29156040, 32395600, 34501314, 36445050, 46001752, 48593400, 51751971, 57502190, 58312080, 69002628, 72890100, 86253285, 92003504, 97186800, 103503942, 115004380, 138005256, 143755475, 145780200, 172506570, 207007884, 230008760, 258759855, 276010512, 287510950, 291560400, 345013140, 414015768, 431266425, 460017520, 517519710, 575021900, 690026280, 828031536, 862532850, 1035039420, 1150043800, 1293799275, 1380052560, 1725065700, 2070078840, 2300087600, 2587598550, 3450131400, 4140157680, 5175197100, 6900262800, 10350394200, 20700788400]

約数ペア:

[(1, 20700788400), (2, 10350394200), (3, 6900262800), (4, 5175197100), (5, 4140157680), (6, 3450131400), (8, 2587598550), (9, 2300087600), (10, 2070078840), (12, 1725065700), (15, 1380052560), (16, 1293799275), (18, 1150043800), (20, 1035039420), (24, 862532850), (25, 828031536), (30, 690026280), (36, 575021900), (40, 517519710), (45, 460017520), (48, 431266425), (50, 414015768), (60, 345013140), (71, 291560400), (72, 287510950), (75, 276010512), (80, 258759855), (90, 230008760), (100, 207007884), (120, 172506570), (142, 145780200), (144, 143755475), (150, 138005256), (180, 115004380), (200, 103503942), (213, 97186800), (225, 92003504), (240, 86253285), (284, 72890100), (300, 69002628), (355, 58312080), (360, 57502190), (400, 51751971), (426, 48593400), (450, 46001752), (568, 36445050), (600, 34501314), (639, 32395600), (710, 29156040), (720, 28751095), (852, 24296700), (900, 23000876), (1065, 19437360), (1136, 18222525), (1200, 17250657), (1278, 16197800), (1420, 14578020), (1704, 12148350), (1775, 11662416), (1800, 11500438), (2130, 9718680), (2556, 8098900), (2840, 7289010), (3195, 6479120), (3408, 6074175), (3550, 5831208), (3600, 5750219), (4260, 4859340), (5112, 4049450), (5325, 3887472), (5680, 3644505), (6390, 3239560), (7100, 2915604), (8520, 2429670), (10224, 2024725), (10650, 1943736), (12780, 1619780), (14200, 1457802), (15975, 1295824), (17040, 1214835), (21300, 971868), (25560, 809890), (28400, 728901), (31950, 647912), (42600, 485934), (51120, 404945), (63900, 323956), (80989, 255600), (85200, 242967), (127800, 161978)]