219874816

素因数分解:

$2^9\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1979}}^1$

素因数の和:2035

約数の個数: 80

約数和(自身を含む): 518538240

約数和(自身を除く): 298663424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 434, 448, 496, 512, 868, 896, 992, 1736, 1792, 1979, 1984, 3472, 3584, 3958, 3968, 6944, 7916, 7936, 13853, 13888, 15832, 15872, 27706, 27776, 31664, 55412, 55552, 61349, 63328, 110824, 111104, 122698, 126656, 221648, 245396, 253312, 429443, 443296, 490792, 506624, 858886, 886592, 981584, 1013248, 1717772, 1773184, 1963168, 3435544, 3546368, 3926336, 6871088, 7092736, 7852672, 13742176, 15705344, 27484352, 31410688, 54968704, 109937408, 219874816]

約数ペア:

[(1, 219874816), (2, 109937408), (4, 54968704), (7, 31410688), (8, 27484352), (14, 15705344), (16, 13742176), (28, 7852672), (31, 7092736), (32, 6871088), (56, 3926336), (62, 3546368), (64, 3435544), (112, 1963168), (124, 1773184), (128, 1717772), (217, 1013248), (224, 981584), (248, 886592), (256, 858886), (434, 506624), (448, 490792), (496, 443296), (512, 429443), (868, 253312), (896, 245396), (992, 221648), (1736, 126656), (1792, 122698), (1979, 111104), (1984, 110824), (3472, 63328), (3584, 61349), (3958, 55552), (3968, 55412), (6944, 31664), (7916, 27776), (7936, 27706), (13853, 15872), (13888, 15832)]