19313140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12541}}^1$

素因数の和:12568

約数の個数: 48

約数和(自身を含む): 50569344

約数和(自身を除く): 31256204

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12541, 25082, 50164, 62705, 87787, 125410, 137951, 175574, 250820, 275902, 351148, 438935, 551804, 689755, 877870, 965657, 1379510, 1755740, 1931314, 2759020, 3862628, 4828285, 9656570, 19313140]

約数ペア:

[(1, 19313140), (2, 9656570), (4, 4828285), (5, 3862628), (7, 2759020), (10, 1931314), (11, 1755740), (14, 1379510), (20, 965657), (22, 877870), (28, 689755), (35, 551804), (44, 438935), (55, 351148), (70, 275902), (77, 250820), (110, 175574), (140, 137951), (154, 125410), (220, 87787), (308, 62705), (385, 50164), (770, 25082), (1540, 12541)]