638569568

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31327}}^1$

素因数の和:31364

約数の個数: 72

約数和(自身を含む): 1574983872

約数和(自身を除く): 936414304

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 224, 364, 392, 416, 637, 728, 784, 1274, 1456, 1568, 2548, 2912, 5096, 10192, 20384, 31327, 62654, 125308, 219289, 250616, 407251, 438578, 501232, 814502, 877156, 1002464, 1535023, 1629004, 1754312, 2850757, 3070046, 3258008, 3508624, 5701514, 6140092, 6516016, 7017248, 11403028, 12280184, 13032032, 19955299, 22806056, 24560368, 39910598, 45612112, 49120736, 79821196, 91224224, 159642392, 319284784, 638569568]

約数ペア:

[(1, 638569568), (2, 319284784), (4, 159642392), (7, 91224224), (8, 79821196), (13, 49120736), (14, 45612112), (16, 39910598), (26, 24560368), (28, 22806056), (32, 19955299), (49, 13032032), (52, 12280184), (56, 11403028), (91, 7017248), (98, 6516016), (104, 6140092), (112, 5701514), (182, 3508624), (196, 3258008), (208, 3070046), (224, 2850757), (364, 1754312), (392, 1629004), (416, 1535023), (637, 1002464), (728, 877156), (784, 814502), (1274, 501232), (1456, 438578), (1568, 407251), (2548, 250616), (2912, 219289), (5096, 125308), (10192, 62654), (20384, 31327)]