129218560

素因数分解:

$2^{11}\times 5^1\times {\mathrm{12619}}^1$

素因数の和:12646

約数の個数: 48

約数和(自身を含む): 310073400

約数和(自身を除く): 180854840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 5120, 10240, 12619, 25238, 50476, 63095, 100952, 126190, 201904, 252380, 403808, 504760, 807616, 1009520, 1615232, 2019040, 3230464, 4038080, 6460928, 8076160, 12921856, 16152320, 25843712, 32304640, 64609280, 129218560]

約数ペア:

[(1, 129218560), (2, 64609280), (4, 32304640), (5, 25843712), (8, 16152320), (10, 12921856), (16, 8076160), (20, 6460928), (32, 4038080), (40, 3230464), (64, 2019040), (80, 1615232), (128, 1009520), (160, 807616), (256, 504760), (320, 403808), (512, 252380), (640, 201904), (1024, 126190), (1280, 100952), (2048, 63095), (2560, 50476), (5120, 25238), (10240, 12619)]