209220440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{463}}^1$

素因数の和:577

約数の個数: 128

約数和(自身を含む): 561254400

約数和(自身を除く): 352033960

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 79, 88, 104, 110, 130, 143, 158, 220, 260, 286, 316, 395, 440, 463, 520, 572, 632, 715, 790, 869, 926, 1027, 1144, 1430, 1580, 1738, 1852, 2054, 2315, 2860, 3160, 3476, 3704, 4108, 4345, 4630, 5093, 5135, 5720, 6019, 6952, 8216, 8690, 9260, 10186, 10270, 11297, 12038, 17380, 18520, 20372, 20540, 22594, 24076, 25465, 30095, 34760, 36577, 40744, 41080, 45188, 48152, 50930, 56485, 60190, 66209, 73154, 90376, 101860, 112970, 120380, 132418, 146308, 182885, 203720, 225940, 240760, 264836, 292616, 331045, 365770, 402347, 451880, 475501, 529672, 662090, 731540, 804694, 951002, 1324180, 1463080, 1609388, 1902004, 2011735, 2377505, 2648360, 3218776, 3804008, 4023470, 4755010, 5230511, 8046940, 9510020, 10461022, 16093880, 19020040, 20922044, 26152555, 41844088, 52305110, 104610220, 209220440]

約数ペア:

[(1, 209220440), (2, 104610220), (4, 52305110), (5, 41844088), (8, 26152555), (10, 20922044), (11, 19020040), (13, 16093880), (20, 10461022), (22, 9510020), (26, 8046940), (40, 5230511), (44, 4755010), (52, 4023470), (55, 3804008), (65, 3218776), (79, 2648360), (88, 2377505), (104, 2011735), (110, 1902004), (130, 1609388), (143, 1463080), (158, 1324180), (220, 951002), (260, 804694), (286, 731540), (316, 662090), (395, 529672), (440, 475501), (463, 451880), (520, 402347), (572, 365770), (632, 331045), (715, 292616), (790, 264836), (869, 240760), (926, 225940), (1027, 203720), (1144, 182885), (1430, 146308), (1580, 132418), (1738, 120380), (1852, 112970), (2054, 101860), (2315, 90376), (2860, 73154), (3160, 66209), (3476, 60190), (3704, 56485), (4108, 50930), (4345, 48152), (4630, 45188), (5093, 41080), (5135, 40744), (5720, 36577), (6019, 34760), (6952, 30095), (8216, 25465), (8690, 24076), (9260, 22594), (10186, 20540), (10270, 20372), (11297, 18520), (12038, 17380)]