19975760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{35671}}^1$

素因数の和:35691

約数の個数: 40

約数和(自身を含む): 53079936

約数和(自身を除く): 33104176

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 35671, 71342, 142684, 178355, 249697, 285368, 356710, 499394, 570736, 713420, 998788, 1248485, 1426840, 1997576, 2496970, 2853680, 3995152, 4993940, 9987880, 19975760]

約数ペア:

[(1, 19975760), (2, 9987880), (4, 4993940), (5, 3995152), (7, 2853680), (8, 2496970), (10, 1997576), (14, 1426840), (16, 1248485), (20, 998788), (28, 713420), (35, 570736), (40, 499394), (56, 356710), (70, 285368), (80, 249697), (112, 178355), (140, 142684), (280, 71342), (560, 35671)]