1261960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{4507}}^1$

素因数の和:4525

約数の個数: 32

約数和(自身を含む): 3245760

約数和(自身を除く): 1983800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4507, 9014, 18028, 22535, 31549, 36056, 45070, 63098, 90140, 126196, 157745, 180280, 252392, 315490, 630980, 1261960]

約数ペア:

[(1, 1261960), (2, 630980), (4, 315490), (5, 252392), (7, 180280), (8, 157745), (10, 126196), (14, 90140), (20, 63098), (28, 45070), (35, 36056), (40, 31549), (56, 22535), (70, 18028), (140, 9014), (280, 4507)]