25129880

素因数分解:

$2^3\times 5^1\times {\mathrm{503}}^1\times {\mathrm{1249}}^1$

素因数の和:1763

約数の個数: 32

約数和(自身を含む): 56700000

約数和(自身を除く): 31570120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503, 1006, 1249, 2012, 2498, 2515, 4024, 4996, 5030, 6245, 9992, 10060, 12490, 20120, 24980, 49960, 628247, 1256494, 2512988, 3141235, 5025976, 6282470, 12564940, 25129880]

約数ペア:

[(1, 25129880), (2, 12564940), (4, 6282470), (5, 5025976), (8, 3141235), (10, 2512988), (20, 1256494), (40, 628247), (503, 49960), (1006, 24980), (1249, 20120), (2012, 12490), (2498, 10060), (2515, 9992), (4024, 6245), (4996, 5030)]