20736040960

素因数分解:

$2^{13}\times 5^1\times {\mathrm{506251}}^1$

素因数の和:506282

約数の個数: 56

約数和(自身を含む): 49763559096

約数和(自身を除く): 29027518136

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, 4096, 5120, 8192, 10240, 20480, 40960, 506251, 1012502, 2025004, 2531255, 4050008, 5062510, 8100016, 10125020, 16200032, 20250040, 32400064, 40500080, 64800128, 81000160, 129600256, 162000320, 259200512, 324000640, 518401024, 648001280, 1036802048, 1296002560, 2073604096, 2592005120, 4147208192, 5184010240, 10368020480, 20736040960]

約数ペア:

[(1, 20736040960), (2, 10368020480), (4, 5184010240), (5, 4147208192), (8, 2592005120), (10, 2073604096), (16, 1296002560), (20, 1036802048), (32, 648001280), (40, 518401024), (64, 324000640), (80, 259200512), (128, 162000320), (160, 129600256), (256, 81000160), (320, 64800128), (512, 40500080), (640, 32400064), (1024, 20250040), (1280, 16200032), (2048, 10125020), (2560, 8100016), (4096, 5062510), (5120, 4050008), (8192, 2531255), (10240, 2025004), (20480, 1012502), (40960, 506251)]