289515520

素因数分解:

$2^{11}\times 5^1\times 7^2\times {\mathrm{577}}^1$

素因数の和:618

約数の個数: 144

約数和(自身を含む): 809483220

約数和(自身を除く): 519967700

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 512, 560, 577, 640, 784, 896, 980, 1024, 1120, 1154, 1280, 1568, 1792, 1960, 2048, 2240, 2308, 2560, 2885, 3136, 3584, 3920, 4039, 4480, 4616, 5120, 5770, 6272, 7168, 7840, 8078, 8960, 9232, 10240, 11540, 12544, 14336, 15680, 16156, 17920, 18464, 20195, 23080, 25088, 28273, 31360, 32312, 35840, 36928, 40390, 46160, 50176, 56546, 62720, 64624, 71680, 73856, 80780, 92320, 100352, 113092, 125440, 129248, 141365, 147712, 161560, 184640, 226184, 250880, 258496, 282730, 295424, 323120, 369280, 452368, 501760, 516992, 565460, 590848, 646240, 738560, 904736, 1033984, 1130920, 1181696, 1292480, 1477120, 1809472, 2067968, 2261840, 2584960, 2954240, 3618944, 4135936, 4523680, 5169920, 5908480, 7237888, 8271872, 9047360, 10339840, 14475776, 18094720, 20679680, 28951552, 36189440, 41359360, 57903104, 72378880, 144757760, 289515520]

約数ペア:

[(1, 289515520), (2, 144757760), (4, 72378880), (5, 57903104), (7, 41359360), (8, 36189440), (10, 28951552), (14, 20679680), (16, 18094720), (20, 14475776), (28, 10339840), (32, 9047360), (35, 8271872), (40, 7237888), (49, 5908480), (56, 5169920), (64, 4523680), (70, 4135936), (80, 3618944), (98, 2954240), (112, 2584960), (128, 2261840), (140, 2067968), (160, 1809472), (196, 1477120), (224, 1292480), (245, 1181696), (256, 1130920), (280, 1033984), (320, 904736), (392, 738560), (448, 646240), (490, 590848), (512, 565460), (560, 516992), (577, 501760), (640, 452368), (784, 369280), (896, 323120), (980, 295424), (1024, 282730), (1120, 258496), (1154, 250880), (1280, 226184), (1568, 184640), (1792, 161560), (1960, 147712), (2048, 141365), (2240, 129248), (2308, 125440), (2560, 113092), (2885, 100352), (3136, 92320), (3584, 80780), (3920, 73856), (4039, 71680), (4480, 64624), (4616, 62720), (5120, 56546), (5770, 50176), (6272, 46160), (7168, 40390), (7840, 36928), (8078, 35840), (8960, 32312), (9232, 31360), (10240, 28273), (11540, 25088), (12544, 23080), (14336, 20195), (15680, 18464), (16156, 17920)]