21138565320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{245683}}^1$

素因数の和:245939

約数の個数: 96

約数和(自身を含む): 68988067200

約数和(自身を除く): 47849501880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 239, 360, 478, 717, 956, 1195, 1434, 1912, 2151, 2390, 2868, 3585, 4302, 4780, 5736, 7170, 8604, 9560, 10755, 14340, 17208, 21510, 28680, 43020, 86040, 245683, 491366, 737049, 982732, 1228415, 1474098, 1965464, 2211147, 2456830, 2948196, 3685245, 4422294, 4913660, 5896392, 7370490, 8844588, 9827320, 11055735, 14740980, 17689176, 22111470, 29481960, 44222940, 58718237, 88445880, 117436474, 176154711, 234872948, 293591185, 352309422, 469745896, 528464133, 587182370, 704618844, 880773555, 1056928266, 1174364740, 1409237688, 1761547110, 2113856532, 2348729480, 2642320665, 3523094220, 4227713064, 5284641330, 7046188440, 10569282660, 21138565320]

約数ペア:

[(1, 21138565320), (2, 10569282660), (3, 7046188440), (4, 5284641330), (5, 4227713064), (6, 3523094220), (8, 2642320665), (9, 2348729480), (10, 2113856532), (12, 1761547110), (15, 1409237688), (18, 1174364740), (20, 1056928266), (24, 880773555), (30, 704618844), (36, 587182370), (40, 528464133), (45, 469745896), (60, 352309422), (72, 293591185), (90, 234872948), (120, 176154711), (180, 117436474), (239, 88445880), (360, 58718237), (478, 44222940), (717, 29481960), (956, 22111470), (1195, 17689176), (1434, 14740980), (1912, 11055735), (2151, 9827320), (2390, 8844588), (2868, 7370490), (3585, 5896392), (4302, 4913660), (4780, 4422294), (5736, 3685245), (7170, 2948196), (8604, 2456830), (9560, 2211147), (10755, 1965464), (14340, 1474098), (17208, 1228415), (21510, 982732), (28680, 737049), (43020, 491366), (86040, 245683)]