203939840

素因数分解:

$2^{13}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1$

素因数の和:427

約数の個数: 112

約数和(自身を含む): 528450048

約数和(自身を除く): 324510208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 383, 416, 512, 520, 640, 766, 832, 1024, 1040, 1280, 1532, 1664, 1915, 2048, 2080, 2560, 3064, 3328, 3830, 4096, 4160, 4979, 5120, 6128, 6656, 7660, 8192, 8320, 9958, 10240, 12256, 13312, 15320, 16640, 19916, 20480, 24512, 24895, 26624, 30640, 33280, 39832, 40960, 49024, 49790, 53248, 61280, 66560, 79664, 98048, 99580, 106496, 122560, 133120, 159328, 196096, 199160, 245120, 266240, 318656, 392192, 398320, 490240, 532480, 637312, 784384, 796640, 980480, 1274624, 1568768, 1593280, 1960960, 2549248, 3137536, 3186560, 3921920, 5098496, 6373120, 7843840, 10196992, 12746240, 15687680, 20393984, 25492480, 40787968, 50984960, 101969920, 203939840]

約数ペア:

[(1, 203939840), (2, 101969920), (4, 50984960), (5, 40787968), (8, 25492480), (10, 20393984), (13, 15687680), (16, 12746240), (20, 10196992), (26, 7843840), (32, 6373120), (40, 5098496), (52, 3921920), (64, 3186560), (65, 3137536), (80, 2549248), (104, 1960960), (128, 1593280), (130, 1568768), (160, 1274624), (208, 980480), (256, 796640), (260, 784384), (320, 637312), (383, 532480), (416, 490240), (512, 398320), (520, 392192), (640, 318656), (766, 266240), (832, 245120), (1024, 199160), (1040, 196096), (1280, 159328), (1532, 133120), (1664, 122560), (1915, 106496), (2048, 99580), (2080, 98048), (2560, 79664), (3064, 66560), (3328, 61280), (3830, 53248), (4096, 49790), (4160, 49024), (4979, 40960), (5120, 39832), (6128, 33280), (6656, 30640), (7660, 26624), (8192, 24895), (8320, 24512), (9958, 20480), (10240, 19916), (12256, 16640), (13312, 15320)]