251005860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{199211}}^1$

素因数の和:199233

約数の個数: 72

約数和(自身を含む): 870158016

約数和(自身を除く): 619152156

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 199211, 398422, 597633, 796844, 996055, 1195266, 1394477, 1792899, 1992110, 2390532, 2788954, 2988165, 3585798, 3984220, 4183431, 5577908, 5976330, 6972385, 7171596, 8366862, 8964495, 11952660, 12550293, 13944770, 16733724, 17928990, 20917155, 25100586, 27889540, 35857980, 41834310, 50201172, 62751465, 83668620, 125502930, 251005860]

約数ペア:

[(1, 251005860), (2, 125502930), (3, 83668620), (4, 62751465), (5, 50201172), (6, 41834310), (7, 35857980), (9, 27889540), (10, 25100586), (12, 20917155), (14, 17928990), (15, 16733724), (18, 13944770), (20, 12550293), (21, 11952660), (28, 8964495), (30, 8366862), (35, 7171596), (36, 6972385), (42, 5976330), (45, 5577908), (60, 4183431), (63, 3984220), (70, 3585798), (84, 2988165), (90, 2788954), (105, 2390532), (126, 1992110), (140, 1792899), (180, 1394477), (210, 1195266), (252, 996055), (315, 796844), (420, 597633), (630, 398422), (1260, 199211)]