1657320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{1973}}^1$

素因数の和:1994

約数の個数: 64

約数和(自身を含む): 5685120

約数和(自身を除く): 4027800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 1973, 3946, 5919, 7892, 9865, 11838, 13811, 15784, 19730, 23676, 27622, 29595, 39460, 41433, 47352, 55244, 59190, 69055, 78920, 82866, 110488, 118380, 138110, 165732, 207165, 236760, 276220, 331464, 414330, 552440, 828660, 1657320]

約数ペア:

[(1, 1657320), (2, 828660), (3, 552440), (4, 414330), (5, 331464), (6, 276220), (7, 236760), (8, 207165), (10, 165732), (12, 138110), (14, 118380), (15, 110488), (20, 82866), (21, 78920), (24, 69055), (28, 59190), (30, 55244), (35, 47352), (40, 41433), (42, 39460), (56, 29595), (60, 27622), (70, 23676), (84, 19730), (105, 15784), (120, 13811), (140, 11838), (168, 9865), (210, 7892), (280, 5919), (420, 3946), (840, 1973)]