990290196

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{561389}}^1$

素因数の和:561413

約数の個数: 54

約数和(自身を含む): 2911929930

約数和(自身を除く): 1921639734

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 561389, 1122778, 1684167, 2245556, 3368334, 3929723, 5052501, 6736668, 7859446, 10105002, 11789169, 15718892, 20210004, 23578338, 27508061, 35367507, 47156676, 55016122, 70735014, 82524183, 110032244, 141470028, 165048366, 247572549, 330096732, 495145098, 990290196]

約数ペア:

[(1, 990290196), (2, 495145098), (3, 330096732), (4, 247572549), (6, 165048366), (7, 141470028), (9, 110032244), (12, 82524183), (14, 70735014), (18, 55016122), (21, 47156676), (28, 35367507), (36, 27508061), (42, 23578338), (49, 20210004), (63, 15718892), (84, 11789169), (98, 10105002), (126, 7859446), (147, 6736668), (196, 5052501), (252, 3929723), (294, 3368334), (441, 2245556), (588, 1684167), (882, 1122778), (1764, 561389)]