19309220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1289}}^1$

素因数の和:1412

約数の個数: 48

約数和(自身を含む): 46811520

約数和(自身を除く): 27502300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 107, 140, 214, 428, 535, 749, 1070, 1289, 1498, 2140, 2578, 2996, 3745, 5156, 6445, 7490, 9023, 12890, 14980, 18046, 25780, 36092, 45115, 90230, 137923, 180460, 275846, 551692, 689615, 965461, 1379230, 1930922, 2758460, 3861844, 4827305, 9654610, 19309220]

約数ペア:

[(1, 19309220), (2, 9654610), (4, 4827305), (5, 3861844), (7, 2758460), (10, 1930922), (14, 1379230), (20, 965461), (28, 689615), (35, 551692), (70, 275846), (107, 180460), (140, 137923), (214, 90230), (428, 45115), (535, 36092), (749, 25780), (1070, 18046), (1289, 14980), (1498, 12890), (2140, 9023), (2578, 7490), (2996, 6445), (3745, 5156)]