204400640

素因数分解:

$2^{11}\times 5^1\times {\mathrm{19961}}^1$

素因数の和:19988

約数の個数: 48

約数和(自身を含む): 490466340

約数和(自身を除く): 286065700

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, 19961, 39922, 79844, 99805, 159688, 199610, 319376, 399220, 638752, 798440, 1277504, 1596880, 2555008, 3193760, 5110016, 6387520, 10220032, 12775040, 20440064, 25550080, 40880128, 51100160, 102200320, 204400640]

約数ペア:

[(1, 204400640), (2, 102200320), (4, 51100160), (5, 40880128), (8, 25550080), (10, 20440064), (16, 12775040), (20, 10220032), (32, 6387520), (40, 5110016), (64, 3193760), (80, 2555008), (128, 1596880), (160, 1277504), (256, 798440), (320, 638752), (512, 399220), (640, 319376), (1024, 199610), (1280, 159688), (2048, 99805), (2560, 79844), (5120, 39922), (10240, 19961)]