20065280

素因数分解:

$2^{10}\times 5^1\times {\mathrm{3919}}^1$

素因数の和:3944

約数の個数: 44

約数和(自身を含む): 48145440

約数和(自身を除く): 28080160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 3919, 5120, 7838, 15676, 19595, 31352, 39190, 62704, 78380, 125408, 156760, 250816, 313520, 501632, 627040, 1003264, 1254080, 2006528, 2508160, 4013056, 5016320, 10032640, 20065280]

約数ペア:

[(1, 20065280), (2, 10032640), (4, 5016320), (5, 4013056), (8, 2508160), (10, 2006528), (16, 1254080), (20, 1003264), (32, 627040), (40, 501632), (64, 313520), (80, 250816), (128, 156760), (160, 125408), (256, 78380), (320, 62704), (512, 39190), (640, 31352), (1024, 19595), (1280, 15676), (2560, 7838), (3919, 5120)]