25874320

素因数分解:

$2^4\times 5^1\times {\mathrm{503}}^1\times {\mathrm{643}}^1$

素因数の和:1159

約数の個数: 40

約数和(自身を含む): 60371136

約数和(自身を除く): 34496816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 503, 643, 1006, 1286, 2012, 2515, 2572, 3215, 4024, 5030, 5144, 6430, 8048, 10060, 10288, 12860, 20120, 25720, 40240, 51440, 323429, 646858, 1293716, 1617145, 2587432, 3234290, 5174864, 6468580, 12937160, 25874320]

約数ペア:

[(1, 25874320), (2, 12937160), (4, 6468580), (5, 5174864), (8, 3234290), (10, 2587432), (16, 1617145), (20, 1293716), (40, 646858), (80, 323429), (503, 51440), (643, 40240), (1006, 25720), (1286, 20120), (2012, 12860), (2515, 10288), (2572, 10060), (3215, 8048), (4024, 6430), (5030, 5144)]