821128

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:98

約数の個数: 64

約数和(自身を含む): 2027520

約数和(自身を除く): 1206392

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 31, 43, 44, 56, 62, 77, 86, 88, 124, 154, 172, 217, 248, 301, 308, 341, 344, 434, 473, 602, 616, 682, 868, 946, 1204, 1333, 1364, 1736, 1892, 2387, 2408, 2666, 2728, 3311, 3784, 4774, 5332, 6622, 9331, 9548, 10664, 13244, 14663, 18662, 19096, 26488, 29326, 37324, 58652, 74648, 102641, 117304, 205282, 410564, 821128]

約数ペア:

[(1, 821128), (2, 410564), (4, 205282), (7, 117304), (8, 102641), (11, 74648), (14, 58652), (22, 37324), (28, 29326), (31, 26488), (43, 19096), (44, 18662), (56, 14663), (62, 13244), (77, 10664), (86, 9548), (88, 9331), (124, 6622), (154, 5332), (172, 4774), (217, 3784), (248, 3311), (301, 2728), (308, 2666), (341, 2408), (344, 2387), (434, 1892), (473, 1736), (602, 1364), (616, 1333), (682, 1204), (868, 946)]