25816520

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1193}}^1$

素因数の和:1745

約数の個数: 32

約数和(自身を含む): 58243320

約数和(自身を除く): 32426800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 1082, 1193, 2164, 2386, 2705, 4328, 4772, 5410, 5965, 9544, 10820, 11930, 21640, 23860, 47720, 645413, 1290826, 2581652, 3227065, 5163304, 6454130, 12908260, 25816520]

約数ペア:

[(1, 25816520), (2, 12908260), (4, 6454130), (5, 5163304), (8, 3227065), (10, 2581652), (20, 1290826), (40, 645413), (541, 47720), (1082, 23860), (1193, 21640), (2164, 11930), (2386, 10820), (2705, 9544), (4328, 5965), (4772, 5410)]