18635540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12101}}^1$

素因数の和:12128

約数の個数: 48

約数和(自身を含む): 48795264

約数和(自身を除く): 30159724

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, 12101, 24202, 48404, 60505, 84707, 121010, 133111, 169414, 242020, 266222, 338828, 423535, 532444, 665555, 847070, 931777, 1331110, 1694140, 1863554, 2662220, 3727108, 4658885, 9317770, 18635540]

約数ペア:

[(1, 18635540), (2, 9317770), (4, 4658885), (5, 3727108), (7, 2662220), (10, 1863554), (11, 1694140), (14, 1331110), (20, 931777), (22, 847070), (28, 665555), (35, 532444), (44, 423535), (55, 338828), (70, 266222), (77, 242020), (110, 169414), (140, 133111), (154, 121010), (220, 84707), (308, 60505), (385, 48404), (770, 24202), (1540, 12101)]