20475360

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{241}}^1$

素因数の和:321

約数の個数: 144

約数和(自身を含む): 71351280

約数和(自身を除く): 50875920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 59, 60, 72, 80, 90, 96, 118, 120, 144, 160, 177, 180, 236, 240, 241, 288, 295, 354, 360, 472, 480, 482, 531, 590, 708, 720, 723, 885, 944, 964, 1062, 1180, 1205, 1416, 1440, 1446, 1770, 1888, 1928, 2124, 2169, 2360, 2410, 2655, 2832, 2892, 3540, 3615, 3856, 4248, 4338, 4720, 4820, 5310, 5664, 5784, 7080, 7230, 7712, 8496, 8676, 9440, 9640, 10620, 10845, 11568, 14160, 14219, 14460, 16992, 17352, 19280, 21240, 21690, 23136, 28320, 28438, 28920, 34704, 38560, 42480, 42657, 43380, 56876, 57840, 69408, 71095, 84960, 85314, 86760, 113752, 115680, 127971, 142190, 170628, 173520, 213285, 227504, 255942, 284380, 341256, 347040, 426570, 455008, 511884, 568760, 639855, 682512, 853140, 1023768, 1137520, 1279710, 1365024, 1706280, 2047536, 2275040, 2559420, 3412560, 4095072, 5118840, 6825120, 10237680, 20475360]

約数ペア:

[(1, 20475360), (2, 10237680), (3, 6825120), (4, 5118840), (5, 4095072), (6, 3412560), (8, 2559420), (9, 2275040), (10, 2047536), (12, 1706280), (15, 1365024), (16, 1279710), (18, 1137520), (20, 1023768), (24, 853140), (30, 682512), (32, 639855), (36, 568760), (40, 511884), (45, 455008), (48, 426570), (59, 347040), (60, 341256), (72, 284380), (80, 255942), (90, 227504), (96, 213285), (118, 173520), (120, 170628), (144, 142190), (160, 127971), (177, 115680), (180, 113752), (236, 86760), (240, 85314), (241, 84960), (288, 71095), (295, 69408), (354, 57840), (360, 56876), (472, 43380), (480, 42657), (482, 42480), (531, 38560), (590, 34704), (708, 28920), (720, 28438), (723, 28320), (885, 23136), (944, 21690), (964, 21240), (1062, 19280), (1180, 17352), (1205, 16992), (1416, 14460), (1440, 14219), (1446, 14160), (1770, 11568), (1888, 10845), (1928, 10620), (2124, 9640), (2169, 9440), (2360, 8676), (2410, 8496), (2655, 7712), (2832, 7230), (2892, 7080), (3540, 5784), (3615, 5664), (3856, 5310), (4248, 4820), (4338, 4720)]