208014080

素因数分解:

$2^8\times 5^1\times {\mathrm{163}}^1\times {\mathrm{997}}^1$

素因数の和:1181

約数の個数: 72

約数和(自身を含む): 501818352

約数和(自身を除く): 293804272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 256, 320, 326, 640, 652, 815, 997, 1280, 1304, 1630, 1994, 2608, 3260, 3988, 4985, 5216, 6520, 7976, 9970, 10432, 13040, 15952, 19940, 20864, 26080, 31904, 39880, 41728, 52160, 63808, 79760, 104320, 127616, 159520, 162511, 208640, 255232, 319040, 325022, 638080, 650044, 812555, 1276160, 1300088, 1625110, 2600176, 3250220, 5200352, 6500440, 10400704, 13000880, 20801408, 26001760, 41602816, 52003520, 104007040, 208014080]

約数ペア:

[(1, 208014080), (2, 104007040), (4, 52003520), (5, 41602816), (8, 26001760), (10, 20801408), (16, 13000880), (20, 10400704), (32, 6500440), (40, 5200352), (64, 3250220), (80, 2600176), (128, 1625110), (160, 1300088), (163, 1276160), (256, 812555), (320, 650044), (326, 638080), (640, 325022), (652, 319040), (815, 255232), (997, 208640), (1280, 162511), (1304, 159520), (1630, 127616), (1994, 104320), (2608, 79760), (3260, 63808), (3988, 52160), (4985, 41728), (5216, 39880), (6520, 31904), (7976, 26080), (9970, 20864), (10432, 19940), (13040, 15952)]