8161280

素因数分解:

$2^{11}\times 5^1\times {\mathrm{797}}^1$

素因数の和:824

約数の個数: 48

約数和(自身を含む): 19606860

約数和(自身を除く): 11445580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 797, 1024, 1280, 1594, 2048, 2560, 3188, 3985, 5120, 6376, 7970, 10240, 12752, 15940, 25504, 31880, 51008, 63760, 102016, 127520, 204032, 255040, 408064, 510080, 816128, 1020160, 1632256, 2040320, 4080640, 8161280]

約数ペア:

[(1, 8161280), (2, 4080640), (4, 2040320), (5, 1632256), (8, 1020160), (10, 816128), (16, 510080), (20, 408064), (32, 255040), (40, 204032), (64, 127520), (80, 102016), (128, 63760), (160, 51008), (256, 31880), (320, 25504), (512, 15940), (640, 12752), (797, 10240), (1024, 7970), (1280, 6376), (1594, 5120), (2048, 3985), (2560, 3188)]