280858480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{1117}}^1$

素因数の和:1586

約数の個数: 80

約数和(自身を含む): 748612800

約数和(自身を除く): 467754320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 449, 560, 898, 1117, 1796, 2234, 2245, 3143, 3592, 4468, 4490, 5585, 6286, 7184, 7819, 8936, 8980, 11170, 12572, 15638, 15715, 17872, 17960, 22340, 25144, 31276, 31430, 35920, 39095, 44680, 50288, 62552, 62860, 78190, 89360, 125104, 125720, 156380, 251440, 312760, 501533, 625520, 1003066, 2006132, 2507665, 3510731, 4012264, 5015330, 7021462, 8024528, 10030660, 14042924, 17553655, 20061320, 28085848, 35107310, 40122640, 56171696, 70214620, 140429240, 280858480]

約数ペア:

[(1, 280858480), (2, 140429240), (4, 70214620), (5, 56171696), (7, 40122640), (8, 35107310), (10, 28085848), (14, 20061320), (16, 17553655), (20, 14042924), (28, 10030660), (35, 8024528), (40, 7021462), (56, 5015330), (70, 4012264), (80, 3510731), (112, 2507665), (140, 2006132), (280, 1003066), (449, 625520), (560, 501533), (898, 312760), (1117, 251440), (1796, 156380), (2234, 125720), (2245, 125104), (3143, 89360), (3592, 78190), (4468, 62860), (4490, 62552), (5585, 50288), (6286, 44680), (7184, 39095), (7819, 35920), (8936, 31430), (8980, 31276), (11170, 25144), (12572, 22340), (15638, 17960), (15715, 17872)]