55405980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{43973}}^1$

素因数の和:43995

約数の個数: 72

約数和(自身を含む): 192078432

約数和(自身を除く): 136672452

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, 43973, 87946, 131919, 175892, 219865, 263838, 307811, 395757, 439730, 527676, 615622, 659595, 791514, 879460, 923433, 1231244, 1319190, 1539055, 1583028, 1846866, 1978785, 2638380, 2770299, 3078110, 3693732, 3957570, 4617165, 5540598, 6156220, 7915140, 9234330, 11081196, 13851495, 18468660, 27702990, 55405980]

約数ペア:

[(1, 55405980), (2, 27702990), (3, 18468660), (4, 13851495), (5, 11081196), (6, 9234330), (7, 7915140), (9, 6156220), (10, 5540598), (12, 4617165), (14, 3957570), (15, 3693732), (18, 3078110), (20, 2770299), (21, 2638380), (28, 1978785), (30, 1846866), (35, 1583028), (36, 1539055), (42, 1319190), (45, 1231244), (60, 923433), (63, 879460), (70, 791514), (84, 659595), (90, 615622), (105, 527676), (126, 439730), (140, 395757), (180, 307811), (210, 263838), (252, 219865), (315, 175892), (420, 131919), (630, 87946), (1260, 43973)]