291900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{139}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 972160

約数和(自身を除く): 680260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 139, 140, 150, 175, 210, 278, 300, 350, 417, 420, 525, 556, 695, 700, 834, 973, 1050, 1390, 1668, 1946, 2085, 2100, 2780, 2919, 3475, 3892, 4170, 4865, 5838, 6950, 8340, 9730, 10425, 11676, 13900, 14595, 19460, 20850, 24325, 29190, 41700, 48650, 58380, 72975, 97300, 145950, 291900]

約数ペア:

[(1, 291900), (2, 145950), (3, 97300), (4, 72975), (5, 58380), (6, 48650), (7, 41700), (10, 29190), (12, 24325), (14, 20850), (15, 19460), (20, 14595), (21, 13900), (25, 11676), (28, 10425), (30, 9730), (35, 8340), (42, 6950), (50, 5838), (60, 4865), (70, 4170), (75, 3892), (84, 3475), (100, 2919), (105, 2780), (139, 2100), (140, 2085), (150, 1946), (175, 1668), (210, 1390), (278, 1050), (300, 973), (350, 834), (417, 700), (420, 695), (525, 556)]