168959840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{937}}^1$

素因数の和:989

約数の個数: 144

約数和(自身を含む): 485043552

約数和(自身を除く): 316083712

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 160, 161, 184, 196, 224, 230, 245, 280, 322, 368, 392, 460, 490, 560, 644, 736, 784, 805, 920, 937, 980, 1120, 1127, 1288, 1568, 1610, 1840, 1874, 1960, 2254, 2576, 3220, 3680, 3748, 3920, 4508, 4685, 5152, 5635, 6440, 6559, 7496, 7840, 9016, 9370, 11270, 12880, 13118, 14992, 18032, 18740, 21551, 22540, 25760, 26236, 29984, 32795, 36064, 37480, 43102, 45080, 45913, 52472, 65590, 74960, 86204, 90160, 91826, 104944, 107755, 131180, 149920, 150857, 172408, 180320, 183652, 209888, 215510, 229565, 262360, 301714, 344816, 367304, 431020, 459130, 524720, 603428, 689632, 734608, 754285, 862040, 918260, 1049440, 1055999, 1206856, 1469216, 1508570, 1724080, 1836520, 2111998, 2413712, 3017140, 3448160, 3673040, 4223996, 4827424, 5279995, 6034280, 7346080, 8447992, 10559990, 12068560, 16895984, 21119980, 24137120, 33791968, 42239960, 84479920, 168959840]

約数ペア:

[(1, 168959840), (2, 84479920), (4, 42239960), (5, 33791968), (7, 24137120), (8, 21119980), (10, 16895984), (14, 12068560), (16, 10559990), (20, 8447992), (23, 7346080), (28, 6034280), (32, 5279995), (35, 4827424), (40, 4223996), (46, 3673040), (49, 3448160), (56, 3017140), (70, 2413712), (80, 2111998), (92, 1836520), (98, 1724080), (112, 1508570), (115, 1469216), (140, 1206856), (160, 1055999), (161, 1049440), (184, 918260), (196, 862040), (224, 754285), (230, 734608), (245, 689632), (280, 603428), (322, 524720), (368, 459130), (392, 431020), (460, 367304), (490, 344816), (560, 301714), (644, 262360), (736, 229565), (784, 215510), (805, 209888), (920, 183652), (937, 180320), (980, 172408), (1120, 150857), (1127, 149920), (1288, 131180), (1568, 107755), (1610, 104944), (1840, 91826), (1874, 90160), (1960, 86204), (2254, 74960), (2576, 65590), (3220, 52472), (3680, 45913), (3748, 45080), (3920, 43102), (4508, 37480), (4685, 36064), (5152, 32795), (5635, 29984), (6440, 26236), (6559, 25760), (7496, 22540), (7840, 21551), (9016, 18740), (9370, 18032), (11270, 14992), (12880, 13118)]