271740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{647}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 870912

約数和(自身を除く): 599172

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 647, 1294, 1941, 2588, 3235, 3882, 4529, 6470, 7764, 9058, 9705, 12940, 13587, 18116, 19410, 22645, 27174, 38820, 45290, 54348, 67935, 90580, 135870, 271740]

約数ペア:

[(1, 271740), (2, 135870), (3, 90580), (4, 67935), (5, 54348), (6, 45290), (7, 38820), (10, 27174), (12, 22645), (14, 19410), (15, 18116), (20, 13587), (21, 12940), (28, 9705), (30, 9058), (35, 7764), (42, 6470), (60, 4529), (70, 3882), (84, 3235), (105, 2588), (140, 1941), (210, 1294), (420, 647)]