281738240

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{1123}}^1$

素因数の和:1162

約数の個数: 132

約数和(自身を含む): 786883176

約数和(自身を除く): 505144936

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, 640, 784, 896, 980, 1024, 1120, 1123, 1280, 1568, 1792, 1960, 2240, 2246, 2560, 3136, 3584, 3920, 4480, 4492, 5120, 5615, 6272, 7168, 7840, 7861, 8960, 8984, 11230, 12544, 15680, 15722, 17920, 17968, 22460, 25088, 31360, 31444, 35840, 35936, 39305, 44920, 50176, 55027, 62720, 62888, 71872, 78610, 89840, 110054, 125440, 125776, 143744, 157220, 179680, 220108, 250880, 251552, 275135, 287488, 314440, 359360, 440216, 503104, 550270, 574976, 628880, 718720, 880432, 1006208, 1100540, 1149952, 1257760, 1437440, 1760864, 2012416, 2201080, 2515520, 2874880, 3521728, 4024832, 4402160, 5031040, 5749760, 7043456, 8049664, 8804320, 10062080, 14086912, 17608640, 20124160, 28173824, 35217280, 40248320, 56347648, 70434560, 140869120, 281738240]

約数ペア:

[(1, 281738240), (2, 140869120), (4, 70434560), (5, 56347648), (7, 40248320), (8, 35217280), (10, 28173824), (14, 20124160), (16, 17608640), (20, 14086912), (28, 10062080), (32, 8804320), (35, 8049664), (40, 7043456), (49, 5749760), (56, 5031040), (64, 4402160), (70, 4024832), (80, 3521728), (98, 2874880), (112, 2515520), (128, 2201080), (140, 2012416), (160, 1760864), (196, 1437440), (224, 1257760), (245, 1149952), (256, 1100540), (280, 1006208), (320, 880432), (392, 718720), (448, 628880), (490, 574976), (512, 550270), (560, 503104), (640, 440216), (784, 359360), (896, 314440), (980, 287488), (1024, 275135), (1120, 251552), (1123, 250880), (1280, 220108), (1568, 179680), (1792, 157220), (1960, 143744), (2240, 125776), (2246, 125440), (2560, 110054), (3136, 89840), (3584, 78610), (3920, 71872), (4480, 62888), (4492, 62720), (5120, 55027), (5615, 50176), (6272, 44920), (7168, 39305), (7840, 35936), (7861, 35840), (8960, 31444), (8984, 31360), (11230, 25088), (12544, 22460), (15680, 17968), (15722, 17920)]