1281570220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{60623}}^1$

素因数の和:60790

約数の個数: 48

約数和(自身を含む): 3096188928

約数和(自身を除く): 1814618708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151, 302, 604, 755, 1057, 1510, 2114, 3020, 4228, 5285, 10570, 21140, 60623, 121246, 242492, 303115, 424361, 606230, 848722, 1212460, 1697444, 2121805, 4243610, 8487220, 9154073, 18308146, 36616292, 45770365, 64078511, 91540730, 128157022, 183081460, 256314044, 320392555, 640785110, 1281570220]

約数ペア:

[(1, 1281570220), (2, 640785110), (4, 320392555), (5, 256314044), (7, 183081460), (10, 128157022), (14, 91540730), (20, 64078511), (28, 45770365), (35, 36616292), (70, 18308146), (140, 9154073), (151, 8487220), (302, 4243610), (604, 2121805), (755, 1697444), (1057, 1212460), (1510, 848722), (2114, 606230), (3020, 424361), (4228, 303115), (5285, 242492), (10570, 121246), (21140, 60623)]