198170980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1415507}}^1$

素因数の和:1415523

約数の個数: 24

約数和(自身を含む): 475610688

約数和(自身を除く): 277439708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1415507, 2831014, 5662028, 7077535, 9908549, 14155070, 19817098, 28310140, 39634196, 49542745, 99085490, 198170980]

約数ペア:

[(1, 198170980), (2, 99085490), (4, 49542745), (5, 39634196), (7, 28310140), (10, 19817098), (14, 14155070), (20, 9908549), (28, 7077535), (35, 5662028), (70, 2831014), (140, 1415507)]