20954640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12473}}^1$

素因数の和:12496

約数の個数: 80

約数和(自身を含む): 74245248

約数和(自身を除く): 53290608

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12473, 24946, 37419, 49892, 62365, 74838, 87311, 99784, 124730, 149676, 174622, 187095, 199568, 249460, 261933, 299352, 349244, 374190, 436555, 498920, 523866, 598704, 698488, 748380, 873110, 997840, 1047732, 1309665, 1396976, 1496760, 1746220, 2095464, 2619330, 2993520, 3492440, 4190928, 5238660, 6984880, 10477320, 20954640]

約数ペア:

[(1, 20954640), (2, 10477320), (3, 6984880), (4, 5238660), (5, 4190928), (6, 3492440), (7, 2993520), (8, 2619330), (10, 2095464), (12, 1746220), (14, 1496760), (15, 1396976), (16, 1309665), (20, 1047732), (21, 997840), (24, 873110), (28, 748380), (30, 698488), (35, 598704), (40, 523866), (42, 498920), (48, 436555), (56, 374190), (60, 349244), (70, 299352), (80, 261933), (84, 249460), (105, 199568), (112, 187095), (120, 174622), (140, 149676), (168, 124730), (210, 99784), (240, 87311), (280, 74838), (336, 62365), (420, 49892), (560, 37419), (840, 24946), (1680, 12473)]