18885720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{22483}}^1$

素因数の和:22504

約数の個数: 64

約数和(自身を含む): 64753920

約数和(自身を除く): 45868200

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, 22483, 44966, 67449, 89932, 112415, 134898, 157381, 179864, 224830, 269796, 314762, 337245, 449660, 472143, 539592, 629524, 674490, 786905, 899320, 944286, 1259048, 1348980, 1573810, 1888572, 2360715, 2697960, 3147620, 3777144, 4721430, 6295240, 9442860, 18885720]

約数ペア:

[(1, 18885720), (2, 9442860), (3, 6295240), (4, 4721430), (5, 3777144), (6, 3147620), (7, 2697960), (8, 2360715), (10, 1888572), (12, 1573810), (14, 1348980), (15, 1259048), (20, 944286), (21, 899320), (24, 786905), (28, 674490), (30, 629524), (35, 539592), (40, 472143), (42, 449660), (56, 337245), (60, 314762), (70, 269796), (84, 224830), (105, 179864), (120, 157381), (140, 134898), (168, 112415), (210, 89932), (280, 67449), (420, 44966), (840, 22483)]