9987880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{35671}}^1$

素因数の和:35689

約数の個数: 32

約数和(自身を含む): 25683840

約数和(自身を除く): 15695960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 35671, 71342, 142684, 178355, 249697, 285368, 356710, 499394, 713420, 998788, 1248485, 1426840, 1997576, 2496970, 4993940, 9987880]

約数ペア:

[(1, 9987880), (2, 4993940), (4, 2496970), (5, 1997576), (7, 1426840), (8, 1248485), (10, 998788), (14, 713420), (20, 499394), (28, 356710), (35, 285368), (40, 249697), (56, 178355), (70, 142684), (140, 71342), (280, 35671)]