205205280

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:571

約数の個数: 192

約数和(自身を含む): 745355520

約数和(自身を除く): 540150240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 157, 160, 168, 210, 224, 240, 280, 314, 336, 389, 420, 471, 480, 560, 628, 672, 778, 785, 840, 942, 1099, 1120, 1167, 1256, 1556, 1570, 1680, 1884, 1945, 2198, 2334, 2355, 2512, 2723, 3112, 3140, 3297, 3360, 3768, 3890, 4396, 4668, 4710, 5024, 5446, 5495, 5835, 6224, 6280, 6594, 7536, 7780, 8169, 8792, 9336, 9420, 10892, 10990, 11670, 12448, 12560, 13188, 13615, 15072, 15560, 16338, 16485, 17584, 18672, 18840, 21784, 21980, 23340, 25120, 26376, 27230, 31120, 32676, 32970, 35168, 37344, 37680, 40845, 43568, 43960, 46680, 52752, 54460, 61073, 62240, 65352, 65940, 75360, 81690, 87136, 87920, 93360, 105504, 108920, 122146, 130704, 131880, 163380, 175840, 183219, 186720, 217840, 244292, 261408, 263760, 305365, 326760, 366438, 427511, 435680, 488584, 527520, 610730, 653520, 732876, 855022, 916095, 977168, 1221460, 1282533, 1307040, 1465752, 1710044, 1832190, 1954336, 2137555, 2442920, 2565066, 2931504, 3420088, 3664380, 4275110, 4885840, 5130132, 5863008, 6412665, 6840176, 7328760, 8550220, 9771680, 10260264, 12825330, 13680352, 14657520, 17100440, 20520528, 25650660, 29315040, 34200880, 41041056, 51301320, 68401760, 102602640, 205205280]

約数ペア:

[(1, 205205280), (2, 102602640), (3, 68401760), (4, 51301320), (5, 41041056), (6, 34200880), (7, 29315040), (8, 25650660), (10, 20520528), (12, 17100440), (14, 14657520), (15, 13680352), (16, 12825330), (20, 10260264), (21, 9771680), (24, 8550220), (28, 7328760), (30, 6840176), (32, 6412665), (35, 5863008), (40, 5130132), (42, 4885840), (48, 4275110), (56, 3664380), (60, 3420088), (70, 2931504), (80, 2565066), (84, 2442920), (96, 2137555), (105, 1954336), (112, 1832190), (120, 1710044), (140, 1465752), (157, 1307040), (160, 1282533), (168, 1221460), (210, 977168), (224, 916095), (240, 855022), (280, 732876), (314, 653520), (336, 610730), (389, 527520), (420, 488584), (471, 435680), (480, 427511), (560, 366438), (628, 326760), (672, 305365), (778, 263760), (785, 261408), (840, 244292), (942, 217840), (1099, 186720), (1120, 183219), (1167, 175840), (1256, 163380), (1556, 131880), (1570, 130704), (1680, 122146), (1884, 108920), (1945, 105504), (2198, 93360), (2334, 87920), (2355, 87136), (2512, 81690), (2723, 75360), (3112, 65940), (3140, 65352), (3297, 62240), (3360, 61073), (3768, 54460), (3890, 52752), (4396, 46680), (4668, 43960), (4710, 43568), (5024, 40845), (5446, 37680), (5495, 37344), (5835, 35168), (6224, 32970), (6280, 32676), (6594, 31120), (7536, 27230), (7780, 26376), (8169, 25120), (8792, 23340), (9336, 21980), (9420, 21784), (10892, 18840), (10990, 18672), (11670, 17584), (12448, 16485), (12560, 16338), (13188, 15560), (13615, 15072)]