252187880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{900671}}^1$

素因数の和:900689

約数の個数: 32

約数和(自身を含む): 648483840

約数和(自身を除く): 396295960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 900671, 1801342, 3602684, 4503355, 6304697, 7205368, 9006710, 12609394, 18013420, 25218788, 31523485, 36026840, 50437576, 63046970, 126093940, 252187880]

約数ペア:

[(1, 252187880), (2, 126093940), (4, 63046970), (5, 50437576), (7, 36026840), (8, 31523485), (10, 25218788), (14, 18013420), (20, 12609394), (28, 9006710), (35, 7205368), (40, 6304697), (56, 4503355), (70, 3602684), (140, 1801342), (280, 900671)]