280156912

素因数分解:

$2^4\times 7^3\times {\mathrm{71}}^1\times {\mathrm{719}}^1$

素因数の和:819

約数の個数: 80

約数和(自身を含む): 642816000

約数和(自身を除く): 362659088

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 71, 98, 112, 142, 196, 284, 343, 392, 497, 568, 686, 719, 784, 994, 1136, 1372, 1438, 1988, 2744, 2876, 3479, 3976, 5033, 5488, 5752, 6958, 7952, 10066, 11504, 13916, 20132, 24353, 27832, 35231, 40264, 48706, 51049, 55664, 70462, 80528, 97412, 102098, 140924, 194824, 204196, 246617, 281848, 357343, 389648, 408392, 493234, 563696, 714686, 816784, 986468, 1429372, 1972936, 2501401, 2858744, 3945872, 5002802, 5717488, 10005604, 17509807, 20011208, 35019614, 40022416, 70039228, 140078456, 280156912]

約数ペア:

[(1, 280156912), (2, 140078456), (4, 70039228), (7, 40022416), (8, 35019614), (14, 20011208), (16, 17509807), (28, 10005604), (49, 5717488), (56, 5002802), (71, 3945872), (98, 2858744), (112, 2501401), (142, 1972936), (196, 1429372), (284, 986468), (343, 816784), (392, 714686), (497, 563696), (568, 493234), (686, 408392), (719, 389648), (784, 357343), (994, 281848), (1136, 246617), (1372, 204196), (1438, 194824), (1988, 140924), (2744, 102098), (2876, 97412), (3479, 80528), (3976, 70462), (5033, 55664), (5488, 51049), (5752, 48706), (6958, 40264), (7952, 35231), (10066, 27832), (11504, 24353), (13916, 20132)]