19244540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1361}}^1$

素因数の和:1478

約数の個数: 48

約数和(自身を含む): 46678464

約数和(自身を除く): 27433924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1361, 1414, 2020, 2722, 2828, 3535, 5444, 6805, 7070, 9527, 13610, 14140, 19054, 27220, 38108, 47635, 95270, 137461, 190540, 274922, 549844, 687305, 962227, 1374610, 1924454, 2749220, 3848908, 4811135, 9622270, 19244540]

約数ペア:

[(1, 19244540), (2, 9622270), (4, 4811135), (5, 3848908), (7, 2749220), (10, 1924454), (14, 1374610), (20, 962227), (28, 687305), (35, 549844), (70, 274922), (101, 190540), (140, 137461), (202, 95270), (404, 47635), (505, 38108), (707, 27220), (1010, 19054), (1361, 14140), (1414, 13610), (2020, 9527), (2722, 7070), (2828, 6805), (3535, 5444)]