204715980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{162473}}^1$

素因数の和:162495

約数の個数: 72

約数和(自身を含む): 709686432

約数和(自身を除く): 504970452

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 162473, 324946, 487419, 649892, 812365, 974838, 1137311, 1462257, 1624730, 1949676, 2274622, 2437095, 2924514, 3249460, 3411933, 4549244, 4874190, 5686555, 5849028, 6823866, 7311285, 9748380, 10235799, 11373110, 13647732, 14622570, 17059665, 20471598, 22746220, 29245140, 34119330, 40943196, 51178995, 68238660, 102357990, 204715980]

約数ペア:

[(1, 204715980), (2, 102357990), (3, 68238660), (4, 51178995), (5, 40943196), (6, 34119330), (7, 29245140), (9, 22746220), (10, 20471598), (12, 17059665), (14, 14622570), (15, 13647732), (18, 11373110), (20, 10235799), (21, 9748380), (28, 7311285), (30, 6823866), (35, 5849028), (36, 5686555), (42, 4874190), (45, 4549244), (60, 3411933), (63, 3249460), (70, 2924514), (84, 2437095), (90, 2274622), (105, 1949676), (126, 1624730), (140, 1462257), (180, 1137311), (210, 974838), (252, 812365), (315, 649892), (420, 487419), (630, 324946), (1260, 162473)]