209500480

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:493

約数の個数: 168

約数和(自身を含む): 600431616

約数和(自身を除く): 390931136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 80, 98, 112, 124, 140, 155, 160, 196, 217, 224, 245, 248, 280, 310, 320, 392, 431, 434, 448, 490, 496, 560, 620, 784, 862, 868, 980, 992, 1085, 1120, 1240, 1519, 1568, 1724, 1736, 1960, 1984, 2155, 2170, 2240, 2480, 3017, 3038, 3136, 3448, 3472, 3920, 4310, 4340, 4960, 6034, 6076, 6896, 6944, 7595, 7840, 8620, 8680, 9920, 12068, 12152, 13361, 13792, 13888, 15085, 15190, 15680, 17240, 17360, 21119, 24136, 24304, 26722, 27584, 30170, 30380, 34480, 34720, 42238, 48272, 48608, 53444, 60340, 60760, 66805, 68960, 69440, 84476, 93527, 96544, 97216, 105595, 106888, 120680, 121520, 133610, 137920, 168952, 187054, 193088, 211190, 213776, 241360, 243040, 267220, 337904, 374108, 422380, 427552, 467635, 482720, 486080, 534440, 654689, 675808, 748216, 844760, 855104, 935270, 965440, 1068880, 1309378, 1351616, 1496432, 1689520, 1870540, 2137760, 2618756, 2992864, 3273445, 3379040, 3741080, 4275520, 5237512, 5985728, 6546890, 6758080, 7482160, 10475024, 13093780, 14964320, 20950048, 26187560, 29928640, 41900096, 52375120, 104750240, 209500480]

約数ペア:

[(1, 209500480), (2, 104750240), (4, 52375120), (5, 41900096), (7, 29928640), (8, 26187560), (10, 20950048), (14, 14964320), (16, 13093780), (20, 10475024), (28, 7482160), (31, 6758080), (32, 6546890), (35, 5985728), (40, 5237512), (49, 4275520), (56, 3741080), (62, 3379040), (64, 3273445), (70, 2992864), (80, 2618756), (98, 2137760), (112, 1870540), (124, 1689520), (140, 1496432), (155, 1351616), (160, 1309378), (196, 1068880), (217, 965440), (224, 935270), (245, 855104), (248, 844760), (280, 748216), (310, 675808), (320, 654689), (392, 534440), (431, 486080), (434, 482720), (448, 467635), (490, 427552), (496, 422380), (560, 374108), (620, 337904), (784, 267220), (862, 243040), (868, 241360), (980, 213776), (992, 211190), (1085, 193088), (1120, 187054), (1240, 168952), (1519, 137920), (1568, 133610), (1724, 121520), (1736, 120680), (1960, 106888), (1984, 105595), (2155, 97216), (2170, 96544), (2240, 93527), (2480, 84476), (3017, 69440), (3038, 68960), (3136, 66805), (3448, 60760), (3472, 60340), (3920, 53444), (4310, 48608), (4340, 48272), (4960, 42238), (6034, 34720), (6076, 34480), (6896, 30380), (6944, 30170), (7595, 27584), (7840, 26722), (8620, 24304), (8680, 24136), (9920, 21119), (12068, 17360), (12152, 17240), (13361, 15680), (13792, 15190), (13888, 15085)]