12734720

素因数分解:

$2^8\times 5^1\times {\mathrm{9949}}^1$

素因数の和:9970

約数の個数: 36

約数和(自身を含む): 30506700

約数和(自身を除く): 17771980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 9949, 19898, 39796, 49745, 79592, 99490, 159184, 198980, 318368, 397960, 636736, 795920, 1273472, 1591840, 2546944, 3183680, 6367360, 12734720]

約数ペア:

[(1, 12734720), (2, 6367360), (4, 3183680), (5, 2546944), (8, 1591840), (10, 1273472), (16, 795920), (20, 636736), (32, 397960), (40, 318368), (64, 198980), (80, 159184), (128, 99490), (160, 79592), (256, 49745), (320, 39796), (640, 19898), (1280, 9949)]