261384720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1089103}}^1$

素因数の和:1089119

約数の個数: 40

約数和(自身を含む): 810293376

約数和(自身を除く): 548908656

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1089103, 2178206, 3267309, 4356412, 5445515, 6534618, 8712824, 10891030, 13069236, 16336545, 17425648, 21782060, 26138472, 32673090, 43564120, 52276944, 65346180, 87128240, 130692360, 261384720]

約数ペア:

[(1, 261384720), (2, 130692360), (3, 87128240), (4, 65346180), (5, 52276944), (6, 43564120), (8, 32673090), (10, 26138472), (12, 21782060), (15, 17425648), (16, 16336545), (20, 13069236), (24, 10891030), (30, 8712824), (40, 6534618), (48, 5445515), (60, 4356412), (80, 3267309), (120, 2178206), (240, 1089103)]