129228800

素因数分解:

$2^{13}\times 5^2\times {\mathrm{631}}^1$

素因数の和:667

約数の個数: 84

約数和(自身を含む): 320975736

約数和(自身を除く): 191746936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 631, 640, 800, 1024, 1262, 1280, 1600, 2048, 2524, 2560, 3155, 3200, 4096, 5048, 5120, 6310, 6400, 8192, 10096, 10240, 12620, 12800, 15775, 20192, 20480, 25240, 25600, 31550, 40384, 40960, 50480, 51200, 63100, 80768, 100960, 102400, 126200, 161536, 201920, 204800, 252400, 323072, 403840, 504800, 646144, 807680, 1009600, 1292288, 1615360, 2019200, 2584576, 3230720, 4038400, 5169152, 6461440, 8076800, 12922880, 16153600, 25845760, 32307200, 64614400, 129228800]

約数ペア:

[(1, 129228800), (2, 64614400), (4, 32307200), (5, 25845760), (8, 16153600), (10, 12922880), (16, 8076800), (20, 6461440), (25, 5169152), (32, 4038400), (40, 3230720), (50, 2584576), (64, 2019200), (80, 1615360), (100, 1292288), (128, 1009600), (160, 807680), (200, 646144), (256, 504800), (320, 403840), (400, 323072), (512, 252400), (631, 204800), (640, 201920), (800, 161536), (1024, 126200), (1262, 102400), (1280, 100960), (1600, 80768), (2048, 63100), (2524, 51200), (2560, 50480), (3155, 40960), (3200, 40384), (4096, 31550), (5048, 25600), (5120, 25240), (6310, 20480), (6400, 20192), (8192, 15775), (10096, 12800), (10240, 12620)]