81993776

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{3221}}^1$

素因数の和:3309

約数の個数: 40

約数和(自身を含む): 167002704

約数和(自身を除く): 85008928

約数列:

[1, 2, 4, 8, 16, 37, 43, 74, 86, 148, 172, 296, 344, 592, 688, 1591, 3182, 3221, 6364, 6442, 12728, 12884, 25456, 25768, 51536, 119177, 138503, 238354, 277006, 476708, 554012, 953416, 1108024, 1906832, 2216048, 5124611, 10249222, 20498444, 40996888, 81993776]

約数ペア:

[(1, 81993776), (2, 40996888), (4, 20498444), (8, 10249222), (16, 5124611), (37, 2216048), (43, 1906832), (74, 1108024), (86, 953416), (148, 554012), (172, 476708), (296, 277006), (344, 238354), (592, 138503), (688, 119177), (1591, 51536), (3182, 25768), (3221, 25456), (6364, 12884), (6442, 12728)]