279009920

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:112

約数の個数: 256

約数和(自身を含む): 822528000

約数和(自身を除く): 543518080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 41, 49, 56, 62, 64, 70, 80, 82, 98, 112, 124, 128, 140, 155, 160, 164, 196, 205, 217, 224, 245, 248, 280, 287, 310, 320, 328, 343, 392, 410, 434, 448, 490, 496, 560, 574, 620, 640, 656, 686, 784, 820, 868, 896, 980, 992, 1085, 1120, 1148, 1240, 1271, 1312, 1372, 1435, 1519, 1568, 1640, 1715, 1736, 1960, 1984, 2009, 2170, 2240, 2296, 2480, 2542, 2624, 2744, 2870, 3038, 3136, 3280, 3430, 3472, 3920, 3968, 4018, 4340, 4480, 4592, 4960, 5084, 5248, 5488, 5740, 6076, 6272, 6355, 6560, 6860, 6944, 7595, 7840, 8036, 8680, 8897, 9184, 9920, 10045, 10168, 10633, 10976, 11480, 12152, 12710, 13120, 13720, 13888, 14063, 15190, 15680, 16072, 17360, 17794, 18368, 19840, 20090, 20336, 21266, 21952, 22960, 24304, 25420, 26240, 27440, 27776, 28126, 30380, 31360, 32144, 34720, 35588, 36736, 40180, 40672, 42532, 43904, 44485, 45920, 48608, 50840, 53165, 54880, 56252, 60760, 62279, 64288, 69440, 70315, 71176, 80360, 81344, 85064, 88970, 91840, 97216, 101680, 106330, 109760, 112504, 121520, 124558, 128576, 138880, 140630, 142352, 160720, 162688, 170128, 177940, 183680, 194432, 203360, 212660, 219520, 225008, 243040, 249116, 257152, 281260, 284704, 311395, 321440, 340256, 355880, 406720, 425320, 435953, 450016, 486080, 498232, 562520, 569408, 622790, 642880, 680512, 711760, 813440, 850640, 871906, 900032, 972160, 996464, 1125040, 1138816, 1245580, 1285760, 1361024, 1423520, 1701280, 1743812, 1800064, 1992928, 2179765, 2250080, 2491160, 2847040, 3402560, 3487624, 3985856, 4359530, 4500160, 4982320, 5694080, 6805120, 6975248, 7971712, 8719060, 9000320, 9964640, 13950496, 17438120, 19929280, 27900992, 34876240, 39858560, 55801984, 69752480, 139504960, 279009920]

約数ペア:

[(1, 279009920), (2, 139504960), (4, 69752480), (5, 55801984), (7, 39858560), (8, 34876240), (10, 27900992), (14, 19929280), (16, 17438120), (20, 13950496), (28, 9964640), (31, 9000320), (32, 8719060), (35, 7971712), (40, 6975248), (41, 6805120), (49, 5694080), (56, 4982320), (62, 4500160), (64, 4359530), (70, 3985856), (80, 3487624), (82, 3402560), (98, 2847040), (112, 2491160), (124, 2250080), (128, 2179765), (140, 1992928), (155, 1800064), (160, 1743812), (164, 1701280), (196, 1423520), (205, 1361024), (217, 1285760), (224, 1245580), (245, 1138816), (248, 1125040), (280, 996464), (287, 972160), (310, 900032), (320, 871906), (328, 850640), (343, 813440), (392, 711760), (410, 680512), (434, 642880), (448, 622790), (490, 569408), (496, 562520), (560, 498232), (574, 486080), (620, 450016), (640, 435953), (656, 425320), (686, 406720), (784, 355880), (820, 340256), (868, 321440), (896, 311395), (980, 284704), (992, 281260), (1085, 257152), (1120, 249116), (1148, 243040), (1240, 225008), (1271, 219520), (1312, 212660), (1372, 203360), (1435, 194432), (1519, 183680), (1568, 177940), (1640, 170128), (1715, 162688), (1736, 160720), (1960, 142352), (1984, 140630), (2009, 138880), (2170, 128576), (2240, 124558), (2296, 121520), (2480, 112504), (2542, 109760), (2624, 106330), (2744, 101680), (2870, 97216), (3038, 91840), (3136, 88970), (3280, 85064), (3430, 81344), (3472, 80360), (3920, 71176), (3968, 70315), (4018, 69440), (4340, 64288), (4480, 62279), (4592, 60760), (4960, 56252), (5084, 54880), (5248, 53165), (5488, 50840), (5740, 48608), (6076, 45920), (6272, 44485), (6355, 43904), (6560, 42532), (6860, 40672), (6944, 40180), (7595, 36736), (7840, 35588), (8036, 34720), (8680, 32144), (8897, 31360), (9184, 30380), (9920, 28126), (10045, 27776), (10168, 27440), (10633, 26240), (10976, 25420), (11480, 24304), (12152, 22960), (12710, 21952), (13120, 21266), (13720, 20336), (13888, 20090), (14063, 19840), (15190, 18368), (15680, 17794), (16072, 17360)]