215113640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{768263}}^1$

素因数の和:768281

約数の個数: 32

約数和(自身を含む): 553150080

約数和(自身を除く): 338036440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 768263, 1536526, 3073052, 3841315, 5377841, 6146104, 7682630, 10755682, 15365260, 21511364, 26889205, 30730520, 43022728, 53778410, 107556820, 215113640]

約数ペア:

[(1, 215113640), (2, 107556820), (4, 53778410), (5, 43022728), (7, 30730520), (8, 26889205), (10, 21511364), (14, 15365260), (20, 10755682), (28, 7682630), (35, 6146104), (40, 5377841), (56, 3841315), (70, 3073052), (140, 1536526), (280, 768263)]