221392920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{587}}^1$

素因数の和:1057

約数の個数: 128

約数和(自身を含む): 762048000

約数和(自身を除く): 540655080

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, 449, 587, 840, 898, 1174, 1347, 1761, 1796, 2245, 2348, 2694, 2935, 3143, 3522, 3592, 4109, 4490, 4696, 5388, 5870, 6286, 6735, 7044, 8218, 8805, 8980, 9429, 10776, 11740, 12327, 12572, 13470, 14088, 15715, 16436, 17610, 17960, 18858, 20545, 23480, 24654, 25144, 26940, 31430, 32872, 35220, 37716, 41090, 47145, 49308, 53880, 61635, 62860, 70440, 75432, 82180, 94290, 98616, 123270, 125720, 164360, 188580, 246540, 263563, 377160, 493080, 527126, 790689, 1054252, 1317815, 1581378, 1844941, 2108504, 2635630, 3162756, 3689882, 3953445, 5271260, 5534823, 6325512, 7379764, 7906890, 9224705, 10542520, 11069646, 14759528, 15813780, 18449410, 22139292, 27674115, 31627560, 36898820, 44278584, 55348230, 73797640, 110696460, 221392920]

約数ペア:

[(1, 221392920), (2, 110696460), (3, 73797640), (4, 55348230), (5, 44278584), (6, 36898820), (7, 31627560), (8, 27674115), (10, 22139292), (12, 18449410), (14, 15813780), (15, 14759528), (20, 11069646), (21, 10542520), (24, 9224705), (28, 7906890), (30, 7379764), (35, 6325512), (40, 5534823), (42, 5271260), (56, 3953445), (60, 3689882), (70, 3162756), (84, 2635630), (105, 2108504), (120, 1844941), (140, 1581378), (168, 1317815), (210, 1054252), (280, 790689), (420, 527126), (449, 493080), (587, 377160), (840, 263563), (898, 246540), (1174, 188580), (1347, 164360), (1761, 125720), (1796, 123270), (2245, 98616), (2348, 94290), (2694, 82180), (2935, 75432), (3143, 70440), (3522, 62860), (3592, 61635), (4109, 53880), (4490, 49308), (4696, 47145), (5388, 41090), (5870, 37716), (6286, 35220), (6735, 32872), (7044, 31430), (8218, 26940), (8805, 25144), (8980, 24654), (9429, 23480), (10776, 20545), (11740, 18858), (12327, 17960), (12572, 17610), (13470, 16436), (14088, 15715)]