205460480

素因数分解:

$2^{10}\times 5^1\times {\mathrm{40129}}^1$

素因数の和:40154

約数の個数: 44

約数和(自身を含む): 492876660

約数和(自身を除く): 287416180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 40129, 80258, 160516, 200645, 321032, 401290, 642064, 802580, 1284128, 1605160, 2568256, 3210320, 5136512, 6420640, 10273024, 12841280, 20546048, 25682560, 41092096, 51365120, 102730240, 205460480]

約数ペア:

[(1, 205460480), (2, 102730240), (4, 51365120), (5, 41092096), (8, 25682560), (10, 20546048), (16, 12841280), (20, 10273024), (32, 6420640), (40, 5136512), (64, 3210320), (80, 2568256), (128, 1605160), (160, 1284128), (256, 802580), (320, 642064), (512, 401290), (640, 321032), (1024, 200645), (1280, 160516), (2560, 80258), (5120, 40129)]