28811880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{491}}^1$

素因数の和:671

約数の個数: 96

約数和(自身を含む): 94404960

約数和(自身を除く): 65593080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 163, 180, 326, 360, 489, 491, 652, 815, 978, 982, 1304, 1467, 1473, 1630, 1956, 1964, 2445, 2455, 2934, 2946, 3260, 3912, 3928, 4419, 4890, 4910, 5868, 5892, 6520, 7335, 7365, 8838, 9780, 9820, 11736, 11784, 14670, 14730, 17676, 19560, 19640, 22095, 29340, 29460, 35352, 44190, 58680, 58920, 80033, 88380, 160066, 176760, 240099, 320132, 400165, 480198, 640264, 720297, 800330, 960396, 1200495, 1440594, 1600660, 1920792, 2400990, 2881188, 3201320, 3601485, 4801980, 5762376, 7202970, 9603960, 14405940, 28811880]

約数ペア:

[(1, 28811880), (2, 14405940), (3, 9603960), (4, 7202970), (5, 5762376), (6, 4801980), (8, 3601485), (9, 3201320), (10, 2881188), (12, 2400990), (15, 1920792), (18, 1600660), (20, 1440594), (24, 1200495), (30, 960396), (36, 800330), (40, 720297), (45, 640264), (60, 480198), (72, 400165), (90, 320132), (120, 240099), (163, 176760), (180, 160066), (326, 88380), (360, 80033), (489, 58920), (491, 58680), (652, 44190), (815, 35352), (978, 29460), (982, 29340), (1304, 22095), (1467, 19640), (1473, 19560), (1630, 17676), (1956, 14730), (1964, 14670), (2445, 11784), (2455, 11736), (2934, 9820), (2946, 9780), (3260, 8838), (3912, 7365), (3928, 7335), (4419, 6520), (4890, 5892), (4910, 5868)]