26398720

素因数分解:

$2^{12}\times 5^1\times {\mathrm{1289}}^1$

素因数の和:1318

約数の個数: 52

約数和(自身を含む): 63398340

約数和(自身を除く): 36999620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1289, 2048, 2560, 2578, 4096, 5120, 5156, 6445, 10240, 10312, 12890, 20480, 20624, 25780, 41248, 51560, 82496, 103120, 164992, 206240, 329984, 412480, 659968, 824960, 1319936, 1649920, 2639872, 3299840, 5279744, 6599680, 13199360, 26398720]

約数ペア:

[(1, 26398720), (2, 13199360), (4, 6599680), (5, 5279744), (8, 3299840), (10, 2639872), (16, 1649920), (20, 1319936), (32, 824960), (40, 659968), (64, 412480), (80, 329984), (128, 206240), (160, 164992), (256, 103120), (320, 82496), (512, 51560), (640, 41248), (1024, 25780), (1280, 20624), (1289, 20480), (2048, 12890), (2560, 10312), (2578, 10240), (4096, 6445), (5120, 5156)]