25918720

素因数分解:

$2^8\times 5^1\times {\mathrm{20249}}^1$

素因数の和:20270

約数の個数: 36

約数和(自身を含む): 62086500

約数和(自身を除く): 36167780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 20249, 40498, 80996, 101245, 161992, 202490, 323984, 404980, 647968, 809960, 1295936, 1619920, 2591872, 3239840, 5183744, 6479680, 12959360, 25918720]

約数ペア:

[(1, 25918720), (2, 12959360), (4, 6479680), (5, 5183744), (8, 3239840), (10, 2591872), (16, 1619920), (20, 1295936), (32, 809960), (40, 647968), (64, 404980), (80, 323984), (128, 202490), (160, 161992), (256, 101245), (320, 80996), (640, 40498), (1280, 20249)]