20942880

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1$

素因数の和:319

約数の個数: 192

約数和(自身を含む): 78962688

約数和(自身を除く): 58019808

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 32, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 96, 105, 112, 115, 120, 138, 140, 160, 161, 168, 184, 210, 224, 230, 240, 271, 276, 280, 322, 336, 345, 368, 420, 460, 480, 483, 542, 552, 560, 644, 672, 690, 736, 805, 813, 840, 920, 966, 1084, 1104, 1120, 1288, 1355, 1380, 1610, 1626, 1680, 1840, 1897, 1932, 2168, 2208, 2415, 2576, 2710, 2760, 3220, 3252, 3360, 3680, 3794, 3864, 4065, 4336, 4830, 5152, 5420, 5520, 5691, 6233, 6440, 6504, 7588, 7728, 8130, 8672, 9485, 9660, 10840, 11040, 11382, 12466, 12880, 13008, 15176, 15456, 16260, 18699, 18970, 19320, 21680, 22764, 24932, 25760, 26016, 28455, 30352, 31165, 32520, 37398, 37940, 38640, 43360, 43631, 45528, 49864, 56910, 60704, 62330, 65040, 74796, 75880, 77280, 87262, 91056, 93495, 99728, 113820, 124660, 130080, 130893, 149592, 151760, 174524, 182112, 186990, 199456, 218155, 227640, 249320, 261786, 299184, 303520, 349048, 373980, 436310, 455280, 498640, 523572, 598368, 654465, 698096, 747960, 872620, 910560, 997280, 1047144, 1308930, 1396192, 1495920, 1745240, 2094288, 2617860, 2991840, 3490480, 4188576, 5235720, 6980960, 10471440, 20942880]

約数ペア:

[(1, 20942880), (2, 10471440), (3, 6980960), (4, 5235720), (5, 4188576), (6, 3490480), (7, 2991840), (8, 2617860), (10, 2094288), (12, 1745240), (14, 1495920), (15, 1396192), (16, 1308930), (20, 1047144), (21, 997280), (23, 910560), (24, 872620), (28, 747960), (30, 698096), (32, 654465), (35, 598368), (40, 523572), (42, 498640), (46, 455280), (48, 436310), (56, 373980), (60, 349048), (69, 303520), (70, 299184), (80, 261786), (84, 249320), (92, 227640), (96, 218155), (105, 199456), (112, 186990), (115, 182112), (120, 174524), (138, 151760), (140, 149592), (160, 130893), (161, 130080), (168, 124660), (184, 113820), (210, 99728), (224, 93495), (230, 91056), (240, 87262), (271, 77280), (276, 75880), (280, 74796), (322, 65040), (336, 62330), (345, 60704), (368, 56910), (420, 49864), (460, 45528), (480, 43631), (483, 43360), (542, 38640), (552, 37940), (560, 37398), (644, 32520), (672, 31165), (690, 30352), (736, 28455), (805, 26016), (813, 25760), (840, 24932), (920, 22764), (966, 21680), (1084, 19320), (1104, 18970), (1120, 18699), (1288, 16260), (1355, 15456), (1380, 15176), (1610, 13008), (1626, 12880), (1680, 12466), (1840, 11382), (1897, 11040), (1932, 10840), (2168, 9660), (2208, 9485), (2415, 8672), (2576, 8130), (2710, 7728), (2760, 7588), (3220, 6504), (3252, 6440), (3360, 6233), (3680, 5691), (3794, 5520), (3864, 5420), (4065, 5152), (4336, 4830)]