2990540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{521}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 7366464

約数和(自身を除く): 4375924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 521, 574, 820, 1042, 1148, 1435, 2084, 2605, 2870, 3647, 5210, 5740, 7294, 10420, 14588, 18235, 21361, 36470, 42722, 72940, 85444, 106805, 149527, 213610, 299054, 427220, 598108, 747635, 1495270, 2990540]

約数ペア:

[(1, 2990540), (2, 1495270), (4, 747635), (5, 598108), (7, 427220), (10, 299054), (14, 213610), (20, 149527), (28, 106805), (35, 85444), (41, 72940), (70, 42722), (82, 36470), (140, 21361), (164, 18235), (205, 14588), (287, 10420), (410, 7294), (521, 5740), (574, 5210), (820, 3647), (1042, 2870), (1148, 2605), (1435, 2084)]